21418440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{178487}}^1$

素因数の和:178501

約数の個数: 32

約数和(自身を含む): 64255680

約数和(自身を除く): 42837240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 178487, 356974, 535461, 713948, 892435, 1070922, 1427896, 1784870, 2141844, 2677305, 3569740, 4283688, 5354610, 7139480, 10709220, 21418440]

約数ペア:

[(1, 21418440), (2, 10709220), (3, 7139480), (4, 5354610), (5, 4283688), (6, 3569740), (8, 2677305), (10, 2141844), (12, 1784870), (15, 1427896), (20, 1070922), (24, 892435), (30, 713948), (40, 535461), (60, 356974), (120, 178487)]