21154992

素因数分解:

$2^4\times 3^1\times {\mathrm{137}}^1\times {\mathrm{3217}}^1$

素因数の和:3365

約数の個数: 40

約数和(自身を含む): 55066416

約数和(自身を除く): 33911424

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 137, 274, 411, 548, 822, 1096, 1644, 2192, 3217, 3288, 6434, 6576, 9651, 12868, 19302, 25736, 38604, 51472, 77208, 154416, 440729, 881458, 1322187, 1762916, 2644374, 3525832, 5288748, 7051664, 10577496, 21154992]

約数ペア:

[(1, 21154992), (2, 10577496), (3, 7051664), (4, 5288748), (6, 3525832), (8, 2644374), (12, 1762916), (16, 1322187), (24, 881458), (48, 440729), (137, 154416), (274, 77208), (411, 51472), (548, 38604), (822, 25736), (1096, 19302), (1644, 12868), (2192, 9651), (3217, 6576), (3288, 6434)]