21242703

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 10206897

約数列:

[1, 3, 19, 29, 57, 71, 87, 181, 213, 543, 551, 1349, 1653, 2059, 3439, 4047, 5249, 6177, 10317, 12851, 15747, 38553, 39121, 99731, 117363, 244169, 299193, 372679, 732507, 1118037, 7080901, 21242703]

約数ペア:

[(1, 21242703), (3, 7080901), (19, 1118037), (29, 732507), (57, 372679), (71, 299193), (87, 244169), (181, 117363), (213, 99731), (543, 39121), (551, 38553), (1349, 15747), (1653, 12851), (2059, 10317), (3439, 6177), (4047, 5249)]