21857104

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{751}}^1$

素因数の和:883

約数の個数: 40

約数和(自身を含む): 45318528

約数和(自身を除く): 23461424

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 107, 136, 214, 272, 428, 751, 856, 1502, 1712, 1819, 3004, 3638, 6008, 7276, 12016, 12767, 14552, 25534, 29104, 51068, 80357, 102136, 160714, 204272, 321428, 642856, 1285712, 1366069, 2732138, 5464276, 10928552, 21857104]

約数ペア:

[(1, 21857104), (2, 10928552), (4, 5464276), (8, 2732138), (16, 1366069), (17, 1285712), (34, 642856), (68, 321428), (107, 204272), (136, 160714), (214, 102136), (272, 80357), (428, 51068), (751, 29104), (856, 25534), (1502, 14552), (1712, 12767), (1819, 12016), (3004, 7276), (3638, 6008)]