20985666

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{3023}}^1$

素因数の和:3130

約数の個数: 32

約数和(自身を含む): 45722880

約数和(自身を除く): 24737214

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 89, 178, 267, 534, 1157, 2314, 3023, 3471, 6046, 6942, 9069, 18138, 39299, 78598, 117897, 235794, 269047, 538094, 807141, 1614282, 3497611, 6995222, 10492833, 20985666]

約数ペア:

[(1, 20985666), (2, 10492833), (3, 6995222), (6, 3497611), (13, 1614282), (26, 807141), (39, 538094), (78, 269047), (89, 235794), (178, 117897), (267, 78598), (534, 39299), (1157, 18138), (2314, 9069), (3023, 6942), (3471, 6046)]