21051870

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{14321}}^1$

素因数の和:14345

約数の個数: 48

約数和(自身を含む): 58777488

約数和(自身を除く): 37725618

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 14321, 28642, 42963, 71605, 85926, 100247, 143210, 200494, 214815, 300741, 429630, 501235, 601482, 701729, 1002470, 1403458, 1503705, 2105187, 3007410, 3508645, 4210374, 7017290, 10525935, 21051870]

約数ペア:

[(1, 21051870), (2, 10525935), (3, 7017290), (5, 4210374), (6, 3508645), (7, 3007410), (10, 2105187), (14, 1503705), (15, 1403458), (21, 1002470), (30, 701729), (35, 601482), (42, 501235), (49, 429630), (70, 300741), (98, 214815), (105, 200494), (147, 143210), (210, 100247), (245, 85926), (294, 71605), (490, 42963), (735, 28642), (1470, 14321)]