21000948972

素因数分解:

$2^2\times 3^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1\times {\mathrm{85133}}^1$

素因数の和:85538

約数の個数: 48

約数和(自身を含む): 49953906912

約数和(自身を除く): 28952957940

約数列:

[1, 2, 3, 4, 6, 12, 61, 122, 183, 244, 337, 366, 674, 732, 1011, 1348, 2022, 4044, 20557, 41114, 61671, 82228, 85133, 123342, 170266, 246684, 255399, 340532, 510798, 1021596, 5193113, 10386226, 15579339, 20772452, 28689821, 31158678, 57379642, 62317356, 86069463, 114759284, 172138926, 344277852, 1750079081, 3500158162, 5250237243, 7000316324, 10500474486, 21000948972]

約数ペア:

[(1, 21000948972), (2, 10500474486), (3, 7000316324), (4, 5250237243), (6, 3500158162), (12, 1750079081), (61, 344277852), (122, 172138926), (183, 114759284), (244, 86069463), (337, 62317356), (366, 57379642), (674, 31158678), (732, 28689821), (1011, 20772452), (1348, 15579339), (2022, 10386226), (4044, 5193113), (20557, 1021596), (41114, 510798), (61671, 340532), (82228, 255399), (85133, 246684), (123342, 170266)]