21658670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:321

約数の個数: 64

約数和(自身を含む): 45999360

約数和(自身を除く): 24340690

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 43, 55, 86, 95, 110, 190, 209, 215, 241, 418, 430, 473, 482, 817, 946, 1045, 1205, 1634, 2090, 2365, 2410, 2651, 4085, 4579, 4730, 5302, 8170, 8987, 9158, 10363, 13255, 17974, 20726, 22895, 26510, 44935, 45790, 50369, 51815, 89870, 100738, 103630, 113993, 196897, 227986, 251845, 393794, 503690, 569965, 984485, 1139930, 1968970, 2165867, 4331734, 10829335, 21658670]

約数ペア:

[(1, 21658670), (2, 10829335), (5, 4331734), (10, 2165867), (11, 1968970), (19, 1139930), (22, 984485), (38, 569965), (43, 503690), (55, 393794), (86, 251845), (95, 227986), (110, 196897), (190, 113993), (209, 103630), (215, 100738), (241, 89870), (418, 51815), (430, 50369), (473, 45790), (482, 44935), (817, 26510), (946, 22895), (1045, 20726), (1205, 17974), (1634, 13255), (2090, 10363), (2365, 9158), (2410, 8987), (2651, 8170), (4085, 5302), (4579, 4730)]