21187710

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{809}}^1$

素因数の和:922

約数の個数: 64

約数和(自身を含む): 57153600

約数和(自身を除く): 35965890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 97, 135, 194, 270, 291, 485, 582, 809, 873, 970, 1455, 1618, 1746, 2427, 2619, 2910, 4045, 4365, 4854, 5238, 7281, 8090, 8730, 12135, 13095, 14562, 21843, 24270, 26190, 36405, 43686, 72810, 78473, 109215, 156946, 218430, 235419, 392365, 470838, 706257, 784730, 1177095, 1412514, 2118771, 2354190, 3531285, 4237542, 7062570, 10593855, 21187710]

約数ペア:

[(1, 21187710), (2, 10593855), (3, 7062570), (5, 4237542), (6, 3531285), (9, 2354190), (10, 2118771), (15, 1412514), (18, 1177095), (27, 784730), (30, 706257), (45, 470838), (54, 392365), (90, 235419), (97, 218430), (135, 156946), (194, 109215), (270, 78473), (291, 72810), (485, 43686), (582, 36405), (809, 26190), (873, 24270), (970, 21843), (1455, 14562), (1618, 13095), (1746, 12135), (2427, 8730), (2619, 8090), (2910, 7281), (4045, 5238), (4365, 4854)]