19117460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13463}}^1$

素因数の和:13543

約数の個数: 24

約数和(自身を含む): 40715136

約数和(自身を除く): 21597676

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 13463, 26926, 53852, 67315, 134630, 269260, 955873, 1911746, 3823492, 4779365, 9558730, 19117460]

約数ペア:

[(1, 19117460), (2, 9558730), (4, 4779365), (5, 3823492), (10, 1911746), (20, 955873), (71, 269260), (142, 134630), (284, 67315), (355, 53852), (710, 26926), (1420, 13463)]