21558285

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{3259}}^1$

素因数の和:3287

約数の個数: 48

約数和(自身を含む): 44596800

約数和(自身を除く): 23038515

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 3259, 6615, 9777, 16295, 22813, 29331, 48885, 68439, 87993, 114065, 146655, 159691, 205317, 342195, 439965, 479073, 615951, 798455, 1026585, 1437219, 2395365, 3079755, 4311657, 7186095, 21558285]

約数ペア:

[(1, 21558285), (3, 7186095), (5, 4311657), (7, 3079755), (9, 2395365), (15, 1437219), (21, 1026585), (27, 798455), (35, 615951), (45, 479073), (49, 439965), (63, 342195), (105, 205317), (135, 159691), (147, 146655), (189, 114065), (245, 87993), (315, 68439), (441, 48885), (735, 29331), (945, 22813), (1323, 16295), (2205, 9777), (3259, 6615)]