21906392

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{863}}^1$

素因数の和:1055

約数の個数: 32

約数和(自身を含む): 43545600

約数和(自身を除く): 21639208

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 167, 334, 668, 863, 1336, 1726, 3173, 3452, 6346, 6904, 12692, 16397, 25384, 32794, 65588, 131176, 144121, 288242, 576484, 1152968, 2738299, 5476598, 10953196, 21906392]

約数ペア:

[(1, 21906392), (2, 10953196), (4, 5476598), (8, 2738299), (19, 1152968), (38, 576484), (76, 288242), (152, 144121), (167, 131176), (334, 65588), (668, 32794), (863, 25384), (1336, 16397), (1726, 12692), (3173, 6904), (3452, 6346)]