21638552

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12239}}^1$

素因数の和:12275

約数の個数: 32

約数和(自身を含む): 46267200

約数和(自身を除く): 24628648

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12239, 24478, 48956, 97912, 159107, 208063, 318214, 416126, 636428, 832252, 1272856, 1664504, 2704819, 5409638, 10819276, 21638552]

約数ペア:

[(1, 21638552), (2, 10819276), (4, 5409638), (8, 2704819), (13, 1664504), (17, 1272856), (26, 832252), (34, 636428), (52, 416126), (68, 318214), (104, 208063), (136, 159107), (221, 97912), (442, 48956), (884, 24478), (1768, 12239)]