21955688

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{397}}^1$

素因数の和:657

約数の個数: 32

約数和(自身を含む): 42792960

約数和(自身を除く): 20837272

約数列:

[1, 2, 4, 8, 31, 62, 124, 223, 248, 397, 446, 794, 892, 1588, 1784, 3176, 6913, 12307, 13826, 24614, 27652, 49228, 55304, 88531, 98456, 177062, 354124, 708248, 2744461, 5488922, 10977844, 21955688]

約数ペア:

[(1, 21955688), (2, 10977844), (4, 5488922), (8, 2744461), (31, 708248), (62, 354124), (124, 177062), (223, 98456), (248, 88531), (397, 55304), (446, 49228), (794, 27652), (892, 24614), (1588, 13826), (1784, 12307), (3176, 6913)]