420255213

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{77267}}^1$

素因数の和:77321

約数の個数: 24

約数和(自身を含む): 669449952

約数和(自身を除く): 249194739

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 77267, 231801, 540869, 1622607, 2858879, 3786083, 8576637, 11358249, 20012153, 60036459, 140085071, 420255213]

約数ペア:

[(1, 420255213), (3, 140085071), (7, 60036459), (21, 20012153), (37, 11358249), (49, 8576637), (111, 3786083), (147, 2858879), (259, 1622607), (777, 540869), (1813, 231801), (5439, 77267)]