21783420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{121019}}^1$

素因数の和:121034

約数の個数: 36

約数和(自身を含む): 66076920

約数和(自身を除く): 44293500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 121019, 242038, 363057, 484076, 605095, 726114, 1089171, 1210190, 1452228, 1815285, 2178342, 2420380, 3630570, 4356684, 5445855, 7261140, 10891710, 21783420]

約数ペア:

[(1, 21783420), (2, 10891710), (3, 7261140), (4, 5445855), (5, 4356684), (6, 3630570), (9, 2420380), (10, 2178342), (12, 1815285), (15, 1452228), (18, 1210190), (20, 1089171), (30, 726114), (36, 605095), (45, 484076), (60, 363057), (90, 242038), (180, 121019)]