21091084

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{751}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 45480960

約数和(自身を除く): 24389876

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 59, 68, 118, 119, 236, 238, 413, 476, 751, 826, 1003, 1502, 1652, 2006, 3004, 4012, 5257, 7021, 10514, 12767, 14042, 21028, 25534, 28084, 44309, 51068, 88618, 89369, 177236, 178738, 310163, 357476, 620326, 753253, 1240652, 1506506, 3013012, 5272771, 10545542, 21091084]

約数ペア:

[(1, 21091084), (2, 10545542), (4, 5272771), (7, 3013012), (14, 1506506), (17, 1240652), (28, 753253), (34, 620326), (59, 357476), (68, 310163), (118, 178738), (119, 177236), (236, 89369), (238, 88618), (413, 51068), (476, 44309), (751, 28084), (826, 25534), (1003, 21028), (1502, 14042), (1652, 12767), (2006, 10514), (3004, 7021), (4012, 5257)]