21387872

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{60761}}^1$

素因数の和:60782

約数の個数: 24

約数和(自身を含む): 45936072

約数和(自身を除く): 24548200

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 352, 60761, 121522, 243044, 486088, 668371, 972176, 1336742, 1944352, 2673484, 5346968, 10693936, 21387872]

約数ペア:

[(1, 21387872), (2, 10693936), (4, 5346968), (8, 2673484), (11, 1944352), (16, 1336742), (22, 972176), (32, 668371), (44, 486088), (88, 243044), (176, 121522), (352, 60761)]