21705208

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{12503}}^1$

素因数の和:12547

約数の個数: 32

約数和(自身を含む): 48015360

約数和(自身を除く): 26310152

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 12503, 25006, 50012, 87521, 100024, 175042, 350084, 387593, 700168, 775186, 1550372, 2713151, 3100744, 5426302, 10852604, 21705208]

約数ペア:

[(1, 21705208), (2, 10852604), (4, 5426302), (7, 3100744), (8, 2713151), (14, 1550372), (28, 775186), (31, 700168), (56, 387593), (62, 350084), (124, 175042), (217, 100024), (248, 87521), (434, 50012), (868, 25006), (1736, 12503)]