20969650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32261}}^1$

素因数の和:32286

約数の個数: 24

約数和(自身を含む): 42005124

約数和(自身を除く): 21035474

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32261, 64522, 161305, 322610, 419393, 806525, 838786, 1613050, 2096965, 4193930, 10484825, 20969650]

約数ペア:

[(1, 20969650), (2, 10484825), (5, 4193930), (10, 2096965), (13, 1613050), (25, 838786), (26, 806525), (50, 419393), (65, 322610), (130, 161305), (325, 64522), (650, 32261)]