21763980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{751}}^1$

素因数の和:796

約数の個数: 144

約数和(自身を含む): 78833664

約数和(自身を除く): 57069684

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 23, 28, 30, 35, 36, 42, 45, 46, 60, 63, 69, 70, 84, 90, 92, 105, 115, 126, 138, 140, 161, 180, 207, 210, 230, 252, 276, 315, 322, 345, 414, 420, 460, 483, 630, 644, 690, 751, 805, 828, 966, 1035, 1260, 1380, 1449, 1502, 1610, 1932, 2070, 2253, 2415, 2898, 3004, 3220, 3755, 4140, 4506, 4830, 5257, 5796, 6759, 7245, 7510, 9012, 9660, 10514, 11265, 13518, 14490, 15020, 15771, 17273, 21028, 22530, 26285, 27036, 28980, 31542, 33795, 34546, 45060, 47313, 51819, 52570, 63084, 67590, 69092, 78855, 86365, 94626, 103638, 105140, 120911, 135180, 155457, 157710, 172730, 189252, 207276, 236565, 241822, 259095, 310914, 315420, 345460, 362733, 473130, 483644, 518190, 604555, 621828, 725466, 777285, 946260, 1036380, 1088199, 1209110, 1450932, 1554570, 1813665, 2176398, 2418220, 3109140, 3627330, 4352796, 5440995, 7254660, 10881990, 21763980]

約数ペア:

[(1, 21763980), (2, 10881990), (3, 7254660), (4, 5440995), (5, 4352796), (6, 3627330), (7, 3109140), (9, 2418220), (10, 2176398), (12, 1813665), (14, 1554570), (15, 1450932), (18, 1209110), (20, 1088199), (21, 1036380), (23, 946260), (28, 777285), (30, 725466), (35, 621828), (36, 604555), (42, 518190), (45, 483644), (46, 473130), (60, 362733), (63, 345460), (69, 315420), (70, 310914), (84, 259095), (90, 241822), (92, 236565), (105, 207276), (115, 189252), (126, 172730), (138, 157710), (140, 155457), (161, 135180), (180, 120911), (207, 105140), (210, 103638), (230, 94626), (252, 86365), (276, 78855), (315, 69092), (322, 67590), (345, 63084), (414, 52570), (420, 51819), (460, 47313), (483, 45060), (630, 34546), (644, 33795), (690, 31542), (751, 28980), (805, 27036), (828, 26285), (966, 22530), (1035, 21028), (1260, 17273), (1380, 15771), (1449, 15020), (1502, 14490), (1610, 13518), (1932, 11265), (2070, 10514), (2253, 9660), (2415, 9012), (2898, 7510), (3004, 7245), (3220, 6759), (3755, 5796), (4140, 5257), (4506, 4830)]