19802042

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:734

約数の個数: 32

約数和(自身を含む): 34401024

約数和(自身を除く): 14598982

約数列:

[1, 2, 13, 17, 26, 34, 71, 142, 221, 442, 631, 923, 1207, 1262, 1846, 2414, 8203, 10727, 15691, 16406, 21454, 31382, 44801, 89602, 139451, 278902, 582413, 761617, 1164826, 1523234, 9901021, 19802042]

約数ペア:

[(1, 19802042), (2, 9901021), (13, 1523234), (17, 1164826), (26, 761617), (34, 582413), (71, 278902), (142, 139451), (221, 89602), (442, 44801), (631, 31382), (923, 21454), (1207, 16406), (1262, 15691), (1846, 10727), (2414, 8203)]