1987153

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:316

約数の個数: 16

約数和(自身を含む): 2437120

約数和(自身を除く): 449967

約数列:

[1, 7, 19, 67, 133, 223, 469, 1273, 1561, 4237, 8911, 14941, 29659, 104587, 283879, 1987153]

約数ペア:

[(1, 1987153), (7, 283879), (19, 104587), (67, 29659), (133, 14941), (223, 8911), (469, 4237), (1273, 1561)]