21266772

素因数分解:

$2^2\times 3^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{229}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 51004800

約数和(自身を除く): 29738028

約数列:

[1, 2, 3, 4, 6, 12, 71, 109, 142, 213, 218, 229, 284, 327, 426, 436, 458, 654, 687, 852, 916, 1308, 1374, 2748, 7739, 15478, 16259, 23217, 24961, 30956, 32518, 46434, 48777, 49922, 65036, 74883, 92868, 97554, 99844, 149766, 195108, 299532, 1772231, 3544462, 5316693, 7088924, 10633386, 21266772]

約数ペア:

[(1, 21266772), (2, 10633386), (3, 7088924), (4, 5316693), (6, 3544462), (12, 1772231), (71, 299532), (109, 195108), (142, 149766), (213, 99844), (218, 97554), (229, 92868), (284, 74883), (327, 65036), (426, 49922), (436, 48777), (458, 46434), (654, 32518), (687, 30956), (852, 24961), (916, 23217), (1308, 16259), (1374, 15478), (2748, 7739)]