20644778

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{1741}}^1$

素因数の和:1779

約数の個数: 36

約数和(自身を含む): 39618306

約数和(自身を除く): 18973528

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 121, 154, 242, 539, 847, 1078, 1694, 1741, 3482, 5929, 11858, 12187, 19151, 24374, 38302, 85309, 134057, 170618, 210661, 268114, 421322, 938399, 1474627, 1876798, 2949254, 10322389, 20644778]

約数ペア:

[(1, 20644778), (2, 10322389), (7, 2949254), (11, 1876798), (14, 1474627), (22, 938399), (49, 421322), (77, 268114), (98, 210661), (121, 170618), (154, 134057), (242, 85309), (539, 38302), (847, 24374), (1078, 19151), (1694, 12187), (1741, 11858), (3482, 5929)]