19910332

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 40303872

約数和(自身を除く): 20393540

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 101, 202, 221, 223, 404, 442, 446, 884, 892, 1313, 1717, 2626, 2899, 3434, 3791, 5252, 5798, 6868, 7582, 11596, 15164, 22321, 22523, 44642, 45046, 49283, 89284, 90092, 98566, 197132, 292799, 382891, 585598, 765782, 1171196, 1531564, 4977583, 9955166, 19910332]

約数ペア:

[(1, 19910332), (2, 9955166), (4, 4977583), (13, 1531564), (17, 1171196), (26, 765782), (34, 585598), (52, 382891), (68, 292799), (101, 197132), (202, 98566), (221, 90092), (223, 89284), (404, 49283), (442, 45046), (446, 44642), (884, 22523), (892, 22321), (1313, 15164), (1717, 11596), (2626, 7582), (2899, 6868), (3434, 5798), (3791, 5252)]