21000340876

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1\times {\mathrm{2297}}^1$

素因数の和:2970

約数の個数: 48

約数和(自身を含む): 38088302112

約数和(自身を除く): 17087961236

約数列:

[1, 2, 4, 41, 82, 107, 164, 214, 428, 521, 1042, 2084, 2297, 4387, 4594, 8774, 9188, 17548, 21361, 42722, 55747, 85444, 94177, 111494, 188354, 222988, 245779, 376708, 491558, 983116, 1196737, 2285627, 2393474, 4571254, 4786948, 9142508, 10076939, 20153878, 40307756, 49066217, 98132434, 128050859, 196264868, 256101718, 512203436, 5250085219, 10500170438, 21000340876]

約数ペア:

[(1, 21000340876), (2, 10500170438), (4, 5250085219), (41, 512203436), (82, 256101718), (107, 196264868), (164, 128050859), (214, 98132434), (428, 49066217), (521, 40307756), (1042, 20153878), (2084, 10076939), (2297, 9142508), (4387, 4786948), (4594, 4571254), (8774, 2393474), (9188, 2285627), (17548, 1196737), (21361, 983116), (42722, 491558), (55747, 376708), (85444, 245779), (94177, 222988), (111494, 188354)]