21798760

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{32057}}^1$

素因数の和:32085

約数の個数: 32

約数和(自身を含む): 51933960

約数和(自身を除く): 30135200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 32057, 64114, 128228, 160285, 256456, 320570, 544969, 641140, 1089938, 1282280, 2179876, 2724845, 4359752, 5449690, 10899380, 21798760]

約数ペア:

[(1, 21798760), (2, 10899380), (4, 5449690), (5, 4359752), (8, 2724845), (10, 2179876), (17, 1282280), (20, 1089938), (34, 641140), (40, 544969), (68, 320570), (85, 256456), (136, 160285), (170, 128228), (340, 64114), (680, 32057)]