19395987

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 29331456

約数和(自身を除く): 9935469

約数列:

[1, 3, 13, 31, 39, 61, 93, 183, 263, 403, 789, 793, 1209, 1891, 2379, 3419, 5673, 8153, 10257, 16043, 24459, 24583, 48129, 73749, 105989, 208559, 317967, 497333, 625677, 1491999, 6465329, 19395987]

約数ペア:

[(1, 19395987), (3, 6465329), (13, 1491999), (31, 625677), (39, 497333), (61, 317967), (93, 208559), (183, 105989), (263, 73749), (403, 48129), (789, 24583), (793, 24459), (1209, 16043), (1891, 10257), (2379, 8153), (3419, 5673)]