21945742

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:253

約数の個数: 64

約数和(自身を含む): 44198784

約数和(自身を除く): 22253042

約数列:

[1, 2, 7, 13, 14, 17, 26, 34, 41, 82, 91, 119, 173, 182, 221, 238, 287, 346, 442, 533, 574, 697, 1066, 1211, 1394, 1547, 2249, 2422, 2941, 3094, 3731, 4498, 4879, 5882, 7093, 7462, 9061, 9758, 14186, 15743, 18122, 20587, 31486, 38233, 41174, 49651, 63427, 76466, 92209, 99302, 120581, 126854, 184418, 241162, 267631, 535262, 645463, 844067, 1290926, 1567553, 1688134, 3135106, 10972871, 21945742]

約数ペア:

[(1, 21945742), (2, 10972871), (7, 3135106), (13, 1688134), (14, 1567553), (17, 1290926), (26, 844067), (34, 645463), (41, 535262), (82, 267631), (91, 241162), (119, 184418), (173, 126854), (182, 120581), (221, 99302), (238, 92209), (287, 76466), (346, 63427), (442, 49651), (533, 41174), (574, 38233), (697, 31486), (1066, 20587), (1211, 18122), (1394, 15743), (1547, 14186), (2249, 9758), (2422, 9061), (2941, 7462), (3094, 7093), (3731, 5882), (4498, 4879)]