21661380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9257}}^1$

素因数の和:9285

約数の個数: 72

約数和(自身を含む): 70768152

約数和(自身を除く): 49106772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 9257, 18514, 27771, 37028, 46285, 55542, 83313, 92570, 111084, 120341, 138855, 166626, 185140, 240682, 277710, 333252, 361023, 416565, 481364, 555420, 601705, 722046, 833130, 1083069, 1203410, 1444092, 1666260, 1805115, 2166138, 2406820, 3610230, 4332276, 5415345, 7220460, 10830690, 21661380]

約数ペア:

[(1, 21661380), (2, 10830690), (3, 7220460), (4, 5415345), (5, 4332276), (6, 3610230), (9, 2406820), (10, 2166138), (12, 1805115), (13, 1666260), (15, 1444092), (18, 1203410), (20, 1083069), (26, 833130), (30, 722046), (36, 601705), (39, 555420), (45, 481364), (52, 416565), (60, 361023), (65, 333252), (78, 277710), (90, 240682), (117, 185140), (130, 166626), (156, 138855), (180, 120341), (195, 111084), (234, 92570), (260, 83313), (390, 55542), (468, 46285), (585, 37028), (780, 27771), (1170, 18514), (2340, 9257)]