21783240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{60509}}^1$

素因数の和:60526

約数の個数: 48

約数和(自身を含む): 70796700

約数和(自身を除く): 49013460

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 60509, 121018, 181527, 242036, 302545, 363054, 484072, 544581, 605090, 726108, 907635, 1089162, 1210180, 1452216, 1815270, 2178324, 2420360, 2722905, 3630540, 4356648, 5445810, 7261080, 10891620, 21783240]

約数ペア:

[(1, 21783240), (2, 10891620), (3, 7261080), (4, 5445810), (5, 4356648), (6, 3630540), (8, 2722905), (9, 2420360), (10, 2178324), (12, 1815270), (15, 1452216), (18, 1210180), (20, 1089162), (24, 907635), (30, 726108), (36, 605090), (40, 544581), (45, 484072), (60, 363054), (72, 302545), (90, 242036), (120, 181527), (180, 121018), (360, 60509)]