28115937

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 43429760

約数和(自身を除く): 15313823

約数列:

[1, 3, 9, 27, 43, 61, 129, 183, 387, 397, 549, 1161, 1191, 1647, 2623, 3573, 7869, 10719, 17071, 23607, 24217, 51213, 70821, 72651, 153639, 217953, 460917, 653859, 1041331, 3123993, 9371979, 28115937]

約数ペア:

[(1, 28115937), (3, 9371979), (9, 3123993), (27, 1041331), (43, 653859), (61, 460917), (129, 217953), (183, 153639), (387, 72651), (397, 70821), (549, 51213), (1161, 24217), (1191, 23607), (1647, 17071), (2623, 10719), (3573, 7869)]