21717930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:495

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 34891350

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 233, 239, 390, 466, 478, 699, 717, 1165, 1195, 1398, 1434, 2330, 2390, 3029, 3107, 3495, 3585, 6058, 6214, 6990, 7170, 9087, 9321, 15145, 15535, 18174, 18642, 30290, 31070, 45435, 46605, 55687, 90870, 93210, 111374, 167061, 278435, 334122, 556870, 723931, 835305, 1447862, 1670610, 2171793, 3619655, 4343586, 7239310, 10858965, 21717930]

約数ペア:

[(1, 21717930), (2, 10858965), (3, 7239310), (5, 4343586), (6, 3619655), (10, 2171793), (13, 1670610), (15, 1447862), (26, 835305), (30, 723931), (39, 556870), (65, 334122), (78, 278435), (130, 167061), (195, 111374), (233, 93210), (239, 90870), (390, 55687), (466, 46605), (478, 45435), (699, 31070), (717, 30290), (1165, 18642), (1195, 18174), (1398, 15535), (1434, 15145), (2330, 9321), (2390, 9087), (3029, 7170), (3107, 6990), (3495, 6214), (3585, 6058)]