21105770

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2267}}^1$

素因数の和:2307

約数の個数: 48

約数和(自身を含む): 46539360

約数和(自身を除く): 25433590

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 2267, 4534, 4655, 9310, 11335, 15869, 22670, 31738, 43073, 79345, 86146, 111083, 158690, 215365, 222166, 301511, 430730, 555415, 603022, 1110830, 1507555, 2110577, 3015110, 4221154, 10552885, 21105770]

約数ペア:

[(1, 21105770), (2, 10552885), (5, 4221154), (7, 3015110), (10, 2110577), (14, 1507555), (19, 1110830), (35, 603022), (38, 555415), (49, 430730), (70, 301511), (95, 222166), (98, 215365), (133, 158690), (190, 111083), (245, 86146), (266, 79345), (490, 43073), (665, 31738), (931, 22670), (1330, 15869), (1862, 11335), (2267, 9310), (4534, 4655)]