21438918

素因数分解:

$2^1\times 3^5\times {\mathrm{31}}^1\times {\mathrm{1423}}^1$

素因数の和:1471

約数の個数: 48

約数和(自身を含む): 49760256

約数和(自身を除く): 28321338

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 81, 93, 162, 186, 243, 279, 486, 558, 837, 1423, 1674, 2511, 2846, 4269, 5022, 7533, 8538, 12807, 15066, 25614, 38421, 44113, 76842, 88226, 115263, 132339, 230526, 264678, 345789, 397017, 691578, 794034, 1191051, 2382102, 3573153, 7146306, 10719459, 21438918]

約数ペア:

[(1, 21438918), (2, 10719459), (3, 7146306), (6, 3573153), (9, 2382102), (18, 1191051), (27, 794034), (31, 691578), (54, 397017), (62, 345789), (81, 264678), (93, 230526), (162, 132339), (186, 115263), (243, 88226), (279, 76842), (486, 44113), (558, 38421), (837, 25614), (1423, 15066), (1674, 12807), (2511, 8538), (2846, 7533), (4269, 5022)]