209959778

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{4691}}^1$

素因数の和:4862

約数の個数: 32

約数和(自身を含む): 378362880

約数和(自身を除く): 168403102

約数列:

[1, 2, 7, 14, 23, 46, 139, 161, 278, 322, 973, 1946, 3197, 4691, 6394, 9382, 22379, 32837, 44758, 65674, 107893, 215786, 652049, 755251, 1304098, 1510502, 4564343, 9128686, 14997127, 29994254, 104979889, 209959778]

約数ペア:

[(1, 209959778), (2, 104979889), (7, 29994254), (14, 14997127), (23, 9128686), (46, 4564343), (139, 1510502), (161, 1304098), (278, 755251), (322, 652049), (973, 215786), (1946, 107893), (3197, 65674), (4691, 44758), (6394, 32837), (9382, 22379)]