20211659155

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1\times {\mathrm{15877}}^1$

素因数の和:16147

約数の個数: 32

約数和(自身を含む): 25754370048

約数和(自身を除く): 5542710893

約数列:

[1, 5, 31, 43, 155, 191, 215, 955, 1333, 5921, 6665, 8213, 15877, 29605, 41065, 79385, 254603, 492187, 682711, 1273015, 2460935, 3032507, 3413555, 15162535, 21164041, 94007717, 105820205, 130397801, 470038585, 651989005, 4042331831, 20211659155]

約数ペア:

[(1, 20211659155), (5, 4042331831), (31, 651989005), (43, 470038585), (155, 130397801), (191, 105820205), (215, 94007717), (955, 21164041), (1333, 15162535), (5921, 3413555), (6665, 3032507), (8213, 2460935), (15877, 1273015), (29605, 682711), (41065, 492187), (79385, 254603)]