19153953

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{257}}^1$

素因数の和:303

約数の個数: 54

約数和(自身を含む): 34985574

約数和(自身を除く): 15831621

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 169, 257, 273, 441, 507, 637, 771, 819, 1183, 1521, 1799, 1911, 2313, 3341, 3549, 5397, 5733, 8281, 10023, 10647, 12593, 16191, 23387, 24843, 30069, 37779, 43433, 70161, 74529, 113337, 130299, 163709, 210483, 304031, 390897, 491127, 912093, 1473381, 2128217, 2736279, 6384651, 19153953]

約数ペア:

[(1, 19153953), (3, 6384651), (7, 2736279), (9, 2128217), (13, 1473381), (21, 912093), (39, 491127), (49, 390897), (63, 304031), (91, 210483), (117, 163709), (147, 130299), (169, 113337), (257, 74529), (273, 70161), (441, 43433), (507, 37779), (637, 30069), (771, 24843), (819, 23387), (1183, 16191), (1521, 12593), (1799, 10647), (1911, 10023), (2313, 8281), (3341, 5733), (3549, 5397)]