21070253372

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{134161}}^1$

素因数の和:134322

約数の個数: 48

約数和(自身を含む): 43275294720

約数和(自身を除く): 22205041348

約数列:

[1, 2, 4, 7, 14, 28, 71, 79, 142, 158, 284, 316, 497, 553, 994, 1106, 1988, 2212, 5609, 11218, 22436, 39263, 78526, 134161, 157052, 268322, 536644, 939127, 1878254, 3756508, 9525431, 10598719, 19050862, 21197438, 38101724, 42394876, 66678017, 74191033, 133356034, 148382066, 266712068, 296764132, 752509049, 1505018098, 3010036196, 5267563343, 10535126686, 21070253372]

約数ペア:

[(1, 21070253372), (2, 10535126686), (4, 5267563343), (7, 3010036196), (14, 1505018098), (28, 752509049), (71, 296764132), (79, 266712068), (142, 148382066), (158, 133356034), (284, 74191033), (316, 66678017), (497, 42394876), (553, 38101724), (994, 21197438), (1106, 19050862), (1988, 10598719), (2212, 9525431), (5609, 3756508), (11218, 1878254), (22436, 939127), (39263, 536644), (78526, 268322), (134161, 157052)]