21000272970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{2903}}^1$

素因数の和:3100

約数の個数: 128

約数和(自身を含む): 52890900480

約数和(自身を除く): 31890627510

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 59, 61, 67, 118, 122, 134, 177, 183, 201, 295, 305, 335, 354, 366, 402, 590, 610, 670, 885, 915, 1005, 1770, 1830, 2010, 2903, 3599, 3953, 4087, 5806, 7198, 7906, 8174, 8709, 10797, 11859, 12261, 14515, 17418, 17995, 19765, 20435, 21594, 23718, 24522, 29030, 35990, 39530, 40870, 43545, 53985, 59295, 61305, 87090, 107970, 118590, 122610, 171277, 177083, 194501, 241133, 342554, 354166, 389002, 482266, 513831, 531249, 583503, 723399, 856385, 885415, 972505, 1027662, 1062498, 1167006, 1205665, 1446798, 1712770, 1770830, 1945010, 2411330, 2569155, 2656245, 2917515, 3616995, 5138310, 5312490, 5835030, 7233990, 10447897, 11475559, 11864561, 20895794, 22951118, 23729122, 31343691, 34426677, 35593683, 52239485, 57377795, 59322805, 62687382, 68853354, 71187366, 104478970, 114755590, 118645610, 156718455, 172133385, 177968415, 313436910, 344266770, 355936830, 700009099, 1400018198, 2100027297, 3500045495, 4200054594, 7000090990, 10500136485, 21000272970]

約数ペア:

[(1, 21000272970), (2, 10500136485), (3, 7000090990), (5, 4200054594), (6, 3500045495), (10, 2100027297), (15, 1400018198), (30, 700009099), (59, 355936830), (61, 344266770), (67, 313436910), (118, 177968415), (122, 172133385), (134, 156718455), (177, 118645610), (183, 114755590), (201, 104478970), (295, 71187366), (305, 68853354), (335, 62687382), (354, 59322805), (366, 57377795), (402, 52239485), (590, 35593683), (610, 34426677), (670, 31343691), (885, 23729122), (915, 22951118), (1005, 20895794), (1770, 11864561), (1830, 11475559), (2010, 10447897), (2903, 7233990), (3599, 5835030), (3953, 5312490), (4087, 5138310), (5806, 3616995), (7198, 2917515), (7906, 2656245), (8174, 2569155), (8709, 2411330), (10797, 1945010), (11859, 1770830), (12261, 1712770), (14515, 1446798), (17418, 1205665), (17995, 1167006), (19765, 1062498), (20435, 1027662), (21594, 972505), (23718, 885415), (24522, 856385), (29030, 723399), (35990, 583503), (39530, 531249), (40870, 513831), (43545, 482266), (53985, 389002), (59295, 354166), (61305, 342554), (87090, 241133), (107970, 194501), (118590, 177083), (122610, 171277)]