21566512

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{677}}^1$

素因数の和:877

約数の個数: 40

約数和(自身を含む): 45903312

約数和(自身を除く): 24336800

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 181, 362, 677, 724, 1354, 1448, 1991, 2708, 2896, 3982, 5416, 7447, 7964, 10832, 14894, 15928, 29788, 31856, 59576, 119152, 122537, 245074, 490148, 980296, 1347907, 1960592, 2695814, 5391628, 10783256, 21566512]

約数ペア:

[(1, 21566512), (2, 10783256), (4, 5391628), (8, 2695814), (11, 1960592), (16, 1347907), (22, 980296), (44, 490148), (88, 245074), (176, 122537), (181, 119152), (362, 59576), (677, 31856), (724, 29788), (1354, 15928), (1448, 14894), (1991, 10832), (2708, 7964), (2896, 7447), (3982, 5416)]