18826808

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2351}}^1$

素因数の和:2388

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 28589512

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2351, 4004, 4702, 8008, 9404, 16457, 18808, 25861, 30563, 32914, 51722, 61126, 65828, 103444, 122252, 131656, 181027, 206888, 213941, 244504, 336193, 362054, 427882, 672386, 724108, 855764, 1344772, 1448216, 1711528, 2353351, 2689544, 4706702, 9413404, 18826808]

約数ペア:

[(1, 18826808), (2, 9413404), (4, 4706702), (7, 2689544), (8, 2353351), (11, 1711528), (13, 1448216), (14, 1344772), (22, 855764), (26, 724108), (28, 672386), (44, 427882), (52, 362054), (56, 336193), (77, 244504), (88, 213941), (91, 206888), (104, 181027), (143, 131656), (154, 122252), (182, 103444), (286, 65828), (308, 61126), (364, 51722), (572, 32914), (616, 30563), (728, 25861), (1001, 18808), (1144, 16457), (2002, 9404), (2351, 8008), (4004, 4702)]