21014760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:755

約数の個数: 128

約数和(自身を含む): 71568000

約数和(自身を除く): 50553240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 709, 741, 760, 780, 988, 1140, 1235, 1418, 1482, 1560, 1976, 2127, 2280, 2470, 2836, 2964, 3545, 3705, 4254, 4940, 5672, 5928, 7090, 7410, 8508, 9217, 9880, 10635, 13471, 14180, 14820, 17016, 18434, 21270, 26942, 27651, 28360, 29640, 36868, 40413, 42540, 46085, 53884, 55302, 67355, 73736, 80826, 85080, 92170, 107768, 110604, 134710, 138255, 161652, 175123, 184340, 202065, 221208, 269420, 276510, 323304, 350246, 368680, 404130, 525369, 538840, 553020, 700492, 808260, 875615, 1050738, 1106040, 1400984, 1616520, 1751230, 2101476, 2626845, 3502460, 4202952, 5253690, 7004920, 10507380, 21014760]

約数ペア:

[(1, 21014760), (2, 10507380), (3, 7004920), (4, 5253690), (5, 4202952), (6, 3502460), (8, 2626845), (10, 2101476), (12, 1751230), (13, 1616520), (15, 1400984), (19, 1106040), (20, 1050738), (24, 875615), (26, 808260), (30, 700492), (38, 553020), (39, 538840), (40, 525369), (52, 404130), (57, 368680), (60, 350246), (65, 323304), (76, 276510), (78, 269420), (95, 221208), (104, 202065), (114, 184340), (120, 175123), (130, 161652), (152, 138255), (156, 134710), (190, 110604), (195, 107768), (228, 92170), (247, 85080), (260, 80826), (285, 73736), (312, 67355), (380, 55302), (390, 53884), (456, 46085), (494, 42540), (520, 40413), (570, 36868), (709, 29640), (741, 28360), (760, 27651), (780, 26942), (988, 21270), (1140, 18434), (1235, 17016), (1418, 14820), (1482, 14180), (1560, 13471), (1976, 10635), (2127, 9880), (2280, 9217), (2470, 8508), (2836, 7410), (2964, 7090), (3545, 5928), (3705, 5672), (4254, 4940)]