21947900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16883}}^1$

素因数の和:16910

約数の個数: 36

約数和(自身を含む): 51293592

約数和(自身を除く): 29345692

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16883, 33766, 67532, 84415, 168830, 219479, 337660, 422075, 438958, 844150, 877916, 1097395, 1688300, 2194790, 4389580, 5486975, 10973950, 21947900]

約数ペア:

[(1, 21947900), (2, 10973950), (4, 5486975), (5, 4389580), (10, 2194790), (13, 1688300), (20, 1097395), (25, 877916), (26, 844150), (50, 438958), (52, 422075), (65, 337660), (100, 219479), (130, 168830), (260, 84415), (325, 67532), (650, 33766), (1300, 16883)]