21734804

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 49166208

約数和(自身を除く): 27431404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 29, 52, 58, 71, 91, 116, 142, 182, 203, 284, 364, 377, 406, 497, 754, 812, 841, 923, 994, 1508, 1682, 1846, 1988, 2059, 2639, 3364, 3692, 4118, 5278, 5887, 6461, 8236, 10556, 10933, 11774, 12922, 14413, 21866, 23548, 25844, 26767, 28826, 43732, 53534, 57652, 59711, 76531, 107068, 119422, 153062, 187369, 238844, 306124, 374738, 417977, 749476, 776243, 835954, 1552486, 1671908, 3104972, 5433701, 10867402, 21734804]

約数ペア:

[(1, 21734804), (2, 10867402), (4, 5433701), (7, 3104972), (13, 1671908), (14, 1552486), (26, 835954), (28, 776243), (29, 749476), (52, 417977), (58, 374738), (71, 306124), (91, 238844), (116, 187369), (142, 153062), (182, 119422), (203, 107068), (284, 76531), (364, 59711), (377, 57652), (406, 53534), (497, 43732), (754, 28826), (812, 26767), (841, 25844), (923, 23548), (994, 21866), (1508, 14413), (1682, 12922), (1846, 11774), (1988, 10933), (2059, 10556), (2639, 8236), (3364, 6461), (3692, 5887), (4118, 5278)]