721736961

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1\times {\mathrm{607}}^1$

素因数の和:1021

約数の個数: 32

約数和(自身を含む): 1063231488

約数和(自身を除く): 341494527

約数列:

[1, 3, 11, 33, 137, 263, 411, 607, 789, 1507, 1821, 2893, 4521, 6677, 8679, 20031, 36031, 83159, 108093, 159641, 249477, 396341, 478923, 914749, 1189023, 1756051, 2744247, 5268153, 21870817, 65612451, 240578987, 721736961]

約数ペア:

[(1, 721736961), (3, 240578987), (11, 65612451), (33, 21870817), (137, 5268153), (263, 2744247), (411, 1756051), (607, 1189023), (789, 914749), (1507, 478923), (1821, 396341), (2893, 249477), (4521, 159641), (6677, 108093), (8679, 83159), (20031, 36031)]