19909617

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{313}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 32917248

約数和(自身を除く): 13007631

約数列:

[1, 3, 7, 13, 21, 39, 91, 233, 273, 313, 699, 939, 1631, 2191, 3029, 4069, 4893, 6573, 9087, 12207, 21203, 28483, 63609, 72929, 85449, 218787, 510503, 948077, 1531509, 2844231, 6636539, 19909617]

約数ペア:

[(1, 19909617), (3, 6636539), (7, 2844231), (13, 1531509), (21, 948077), (39, 510503), (91, 218787), (233, 85449), (273, 72929), (313, 63609), (699, 28483), (939, 21203), (1631, 12207), (2191, 9087), (3029, 6573), (4069, 4893)]