21677240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41687}}^1$

素因数の和:41711

約数の個数: 32

約数和(自身を含む): 52526880

約数和(自身を除く): 30849640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41687, 83374, 166748, 208435, 333496, 416870, 541931, 833740, 1083862, 1667480, 2167724, 2709655, 4335448, 5419310, 10838620, 21677240]

約数ペア:

[(1, 21677240), (2, 10838620), (4, 5419310), (5, 4335448), (8, 2709655), (10, 2167724), (13, 1667480), (20, 1083862), (26, 833740), (40, 541931), (52, 416870), (65, 333496), (104, 208435), (130, 166748), (260, 83374), (520, 41687)]