21007977

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{179}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 10096023

約数列:

[1, 3, 19, 29, 57, 71, 87, 179, 213, 537, 551, 1349, 1653, 2059, 3401, 4047, 5191, 6177, 10203, 12709, 15573, 38127, 39121, 98629, 117363, 241471, 295887, 368561, 724413, 1105683, 7002659, 21007977]

約数ペア:

[(1, 21007977), (3, 7002659), (19, 1105683), (29, 724413), (57, 368561), (71, 295887), (87, 241471), (179, 117363), (213, 98629), (537, 39121), (551, 38127), (1349, 15573), (1653, 12709), (2059, 10203), (3401, 6177), (4047, 5191)]