19510972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6151}}^1$

素因数の和:6229

約数の個数: 24

約数和(自身を含む): 37379552

約数和(自身を除く): 17868580

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6151, 12302, 24604, 79963, 159926, 319852, 375211, 750422, 1500844, 4877743, 9755486, 19510972]

約数ペア:

[(1, 19510972), (2, 9755486), (4, 4877743), (13, 1500844), (26, 750422), (52, 375211), (61, 319852), (122, 159926), (244, 79963), (793, 24604), (1586, 12302), (3172, 6151)]