21945475

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{983}}^1$

素因数の和:1059

約数の個数: 24

約数和(自身を含む): 29283840

約数和(自身を除く): 7338365

約数列:

[1, 5, 19, 25, 47, 95, 235, 475, 893, 983, 1175, 4465, 4915, 18677, 22325, 24575, 46201, 93385, 231005, 466925, 877819, 1155025, 4389095, 21945475]

約数ペア:

[(1, 21945475), (5, 4389095), (19, 1155025), (25, 877819), (47, 466925), (95, 231005), (235, 93385), (475, 46201), (893, 24575), (983, 22325), (1175, 18677), (4465, 4915)]