21867555

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 38035872

約数和(自身を除く): 16168317

約数列:

[1, 3, 5, 15, 31, 37, 41, 93, 111, 123, 155, 185, 205, 465, 555, 615, 961, 1147, 1271, 1517, 2883, 3441, 3813, 4551, 4805, 5735, 6355, 7585, 14415, 17205, 19065, 22755, 35557, 39401, 47027, 106671, 118203, 141081, 177785, 197005, 235135, 533355, 591015, 705405, 1457837, 4373511, 7289185, 21867555]

約数ペア:

[(1, 21867555), (3, 7289185), (5, 4373511), (15, 1457837), (31, 705405), (37, 591015), (41, 533355), (93, 235135), (111, 197005), (123, 177785), (155, 141081), (185, 118203), (205, 106671), (465, 47027), (555, 39401), (615, 35557), (961, 22755), (1147, 19065), (1271, 17205), (1517, 14415), (2883, 7585), (3441, 6355), (3813, 5735), (4551, 4805)]