21889980

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5791}}^1$

素因数の和:5816

約数の個数: 96

約数和(自身を含む): 77844480

約数和(自身を除く): 55954500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5791, 11582, 17373, 23164, 28955, 34746, 40537, 52119, 57910, 69492, 81074, 86865, 104238, 115820, 121611, 156357, 162148, 173730, 202685, 208476, 243222, 260595, 312714, 347460, 364833, 405370, 486444, 521190, 608055, 625428, 729666, 781785, 810740, 1042380, 1094499, 1216110, 1459332, 1563570, 1824165, 2188998, 2432220, 3127140, 3648330, 4377996, 5472495, 7296660, 10944990, 21889980]

約数ペア:

[(1, 21889980), (2, 10944990), (3, 7296660), (4, 5472495), (5, 4377996), (6, 3648330), (7, 3127140), (9, 2432220), (10, 2188998), (12, 1824165), (14, 1563570), (15, 1459332), (18, 1216110), (20, 1094499), (21, 1042380), (27, 810740), (28, 781785), (30, 729666), (35, 625428), (36, 608055), (42, 521190), (45, 486444), (54, 405370), (60, 364833), (63, 347460), (70, 312714), (84, 260595), (90, 243222), (105, 208476), (108, 202685), (126, 173730), (135, 162148), (140, 156357), (180, 121611), (189, 115820), (210, 104238), (252, 86865), (270, 81074), (315, 69492), (378, 57910), (420, 52119), (540, 40537), (630, 34746), (756, 28955), (945, 23164), (1260, 17373), (1890, 11582), (3780, 5791)]