21506824

素因数分解:

$2^3\times {\mathrm{47}}^2\times {\mathrm{1217}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 41235390

約数和(自身を除く): 19728566

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 1217, 2209, 2434, 4418, 4868, 8836, 9736, 17672, 57199, 114398, 228796, 457592, 2688353, 5376706, 10753412, 21506824]

約数ペア:

[(1, 21506824), (2, 10753412), (4, 5376706), (8, 2688353), (47, 457592), (94, 228796), (188, 114398), (376, 57199), (1217, 17672), (2209, 9736), (2434, 8836), (4418, 4868)]