21642896

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122971}}^1$

素因数の和:122990

約数の個数: 20

約数和(自身を含む): 45745584

約数和(自身を除く): 24102688

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122971, 245942, 491884, 983768, 1352681, 1967536, 2705362, 5410724, 10821448, 21642896]

約数ペア:

[(1, 21642896), (2, 10821448), (4, 5410724), (8, 2705362), (11, 1967536), (16, 1352681), (22, 983768), (44, 491884), (88, 245942), (176, 122971)]