19417251

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 30670848

約数和(自身を除く): 11253597

約数列:

[1, 3, 7, 21, 47, 103, 141, 191, 309, 329, 573, 721, 987, 1337, 2163, 4011, 4841, 8977, 14523, 19673, 26931, 33887, 59019, 62839, 101661, 137711, 188517, 413133, 924631, 2773893, 6472417, 19417251]

約数ペア:

[(1, 19417251), (3, 6472417), (7, 2773893), (21, 924631), (47, 413133), (103, 188517), (141, 137711), (191, 101661), (309, 62839), (329, 59019), (573, 33887), (721, 26931), (987, 19673), (1337, 14523), (2163, 8977), (4011, 4841)]