280121913

素因数分解:

$3^2\times {\mathrm{79}}^1\times {\mathrm{487}}^1\times {\mathrm{809}}^1$

素因数の和:1381

約数の個数: 24

約数和(自身を含む): 411091200

約数和(自身を除く): 130969287

約数列:

[1, 3, 9, 79, 237, 487, 711, 809, 1461, 2427, 4383, 7281, 38473, 63911, 115419, 191733, 346257, 393983, 575199, 1181949, 3545847, 31124657, 93373971, 280121913]

約数ペア:

[(1, 280121913), (3, 93373971), (9, 31124657), (79, 3545847), (237, 1181949), (487, 575199), (711, 393983), (809, 346257), (1461, 191733), (2427, 115419), (4383, 63911), (7281, 38473)]