21332220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3907}}^1$

素因数の和:3939

約数の個数: 96

約数和(自身を含む): 73532928

約数和(自身を除く): 52200708

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3907, 5460, 7814, 11721, 15628, 19535, 23442, 27349, 39070, 46884, 50791, 54698, 58605, 78140, 82047, 101582, 109396, 117210, 136745, 152373, 164094, 203164, 234420, 253955, 273490, 304746, 328188, 355537, 410235, 507910, 546980, 609492, 711074, 761865, 820470, 1015820, 1066611, 1422148, 1523730, 1640940, 1777685, 2133222, 3047460, 3555370, 4266444, 5333055, 7110740, 10666110, 21332220]

約数ペア:

[(1, 21332220), (2, 10666110), (3, 7110740), (4, 5333055), (5, 4266444), (6, 3555370), (7, 3047460), (10, 2133222), (12, 1777685), (13, 1640940), (14, 1523730), (15, 1422148), (20, 1066611), (21, 1015820), (26, 820470), (28, 761865), (30, 711074), (35, 609492), (39, 546980), (42, 507910), (52, 410235), (60, 355537), (65, 328188), (70, 304746), (78, 273490), (84, 253955), (91, 234420), (105, 203164), (130, 164094), (140, 152373), (156, 136745), (182, 117210), (195, 109396), (210, 101582), (260, 82047), (273, 78140), (364, 58605), (390, 54698), (420, 50791), (455, 46884), (546, 39070), (780, 27349), (910, 23442), (1092, 19535), (1365, 15628), (1820, 11721), (2730, 7814), (3907, 5460)]