21555180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:420

約数の個数: 96

約数和(自身を含む): 67737600

約数和(自身を除く): 46182420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 179, 180, 223, 270, 358, 446, 537, 540, 669, 716, 892, 895, 1074, 1115, 1338, 1611, 1790, 2007, 2148, 2230, 2676, 2685, 3222, 3345, 3580, 4014, 4460, 4833, 5370, 6021, 6444, 6690, 8028, 8055, 9666, 10035, 10740, 12042, 13380, 16110, 19332, 20070, 24084, 24165, 30105, 32220, 39917, 40140, 48330, 60210, 79834, 96660, 119751, 120420, 159668, 199585, 239502, 359253, 399170, 479004, 598755, 718506, 798340, 1077759, 1197510, 1437012, 1796265, 2155518, 2395020, 3592530, 4311036, 5388795, 7185060, 10777590, 21555180]

約数ペア:

[(1, 21555180), (2, 10777590), (3, 7185060), (4, 5388795), (5, 4311036), (6, 3592530), (9, 2395020), (10, 2155518), (12, 1796265), (15, 1437012), (18, 1197510), (20, 1077759), (27, 798340), (30, 718506), (36, 598755), (45, 479004), (54, 399170), (60, 359253), (90, 239502), (108, 199585), (135, 159668), (179, 120420), (180, 119751), (223, 96660), (270, 79834), (358, 60210), (446, 48330), (537, 40140), (540, 39917), (669, 32220), (716, 30105), (892, 24165), (895, 24084), (1074, 20070), (1115, 19332), (1338, 16110), (1611, 13380), (1790, 12042), (2007, 10740), (2148, 10035), (2230, 9666), (2676, 8055), (2685, 8028), (3222, 6690), (3345, 6444), (3580, 6021), (4014, 5370), (4460, 4833)]