21167131388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1801}}^1\times {\mathrm{2861}}^1$

素因数の和:4758

約数の個数: 48

約数和(自身を含む): 40433420160

約数和(自身を除く): 19266288772

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 1801, 2054, 2861, 3602, 4108, 5722, 7204, 11444, 23413, 37193, 46826, 74386, 93652, 142279, 148772, 226019, 284558, 452038, 569116, 904076, 1849627, 2938247, 3699254, 5152661, 5876494, 7398508, 10305322, 11752988, 20610644, 66984593, 133969186, 267938372, 407060219, 814120438, 1628240876, 5291782847, 10583565694, 21167131388]

約数ペア:

[(1, 21167131388), (2, 10583565694), (4, 5291782847), (13, 1628240876), (26, 814120438), (52, 407060219), (79, 267938372), (158, 133969186), (316, 66984593), (1027, 20610644), (1801, 11752988), (2054, 10305322), (2861, 7398508), (3602, 5876494), (4108, 5152661), (5722, 3699254), (7204, 2938247), (11444, 1849627), (23413, 904076), (37193, 569116), (46826, 452038), (74386, 284558), (93652, 226019), (142279, 148772)]