305723019

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{20887}}^1$

素因数の和:20955

約数の個数: 32

約数和(自身を含む): 505322496

約数和(自身を除く): 199599477

約数列:

[1, 3, 7, 17, 21, 41, 51, 119, 123, 287, 357, 697, 861, 2091, 4879, 14637, 20887, 62661, 146209, 355079, 438627, 856367, 1065237, 2485553, 2569101, 5994569, 7456659, 14558239, 17983707, 43674717, 101907673, 305723019]

約数ペア:

[(1, 305723019), (3, 101907673), (7, 43674717), (17, 17983707), (21, 14558239), (41, 7456659), (51, 5994569), (119, 2569101), (123, 2485553), (287, 1065237), (357, 856367), (697, 438627), (861, 355079), (2091, 146209), (4879, 62661), (14637, 20887)]