15131921

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1259}}^1$

素因数の和:1384

約数の個数: 16

約数和(自身を含む): 18506880

約数和(自身を除く): 3374959

約数列:

[1, 7, 17, 101, 119, 707, 1259, 1717, 8813, 12019, 21403, 127159, 149821, 890113, 2161703, 15131921]

約数ペア:

[(1, 15131921), (7, 2161703), (17, 890113), (101, 149821), (119, 127159), (707, 21403), (1259, 12019), (1717, 8813)]