21791340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121063}}^1$

素因数の和:121078

約数の個数: 36

約数和(自身を含む): 66100944

約数和(自身を除く): 44309604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121063, 242126, 363189, 484252, 605315, 726378, 1089567, 1210630, 1452756, 1815945, 2179134, 2421260, 3631890, 4358268, 5447835, 7263780, 10895670, 21791340]

約数ペア:

[(1, 21791340), (2, 10895670), (3, 7263780), (4, 5447835), (5, 4358268), (6, 3631890), (9, 2421260), (10, 2179134), (12, 1815945), (15, 1452756), (18, 1210630), (20, 1089567), (30, 726378), (36, 605315), (45, 484252), (60, 363189), (90, 242126), (180, 121063)]