20101772

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4483}}^1$

素因数の和:4565

約数の個数: 24

約数和(自身を含む): 37665600

約数和(自身を除く): 17563828

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4483, 4484, 8966, 17932, 85177, 170354, 264497, 340708, 528994, 1057988, 5025443, 10050886, 20101772]

約数ペア:

[(1, 20101772), (2, 10050886), (4, 5025443), (19, 1057988), (38, 528994), (59, 340708), (76, 264497), (118, 170354), (236, 85177), (1121, 17932), (2242, 8966), (4483, 4484)]