21051886

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{7589}}^1$

素因数の和:7683

約数の個数: 16

約数和(自身を含む): 33699600

約数和(自身を除く): 12647714

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 7589, 15178, 144191, 288382, 553997, 1107994, 10525943, 21051886]

約数ペア:

[(1, 21051886), (2, 10525943), (19, 1107994), (38, 553997), (73, 288382), (146, 144191), (1387, 15178), (2774, 7589)]