261620253

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{16451}}^1$

素因数の和:16510

約数の個数: 32

約数和(自身を含む): 421171200

約数和(自身を除く): 159550947

約数列:

[1, 3, 9, 19, 27, 31, 57, 93, 171, 279, 513, 589, 837, 1767, 5301, 15903, 16451, 49353, 148059, 312569, 444177, 509981, 937707, 1529943, 2813121, 4589829, 8439363, 9689639, 13769487, 29068917, 87206751, 261620253]

約数ペア:

[(1, 261620253), (3, 87206751), (9, 29068917), (19, 13769487), (27, 9689639), (31, 8439363), (57, 4589829), (93, 2813121), (171, 1529943), (279, 937707), (513, 509981), (589, 444177), (837, 312569), (1767, 148059), (5301, 49353), (15903, 16451)]