21711420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{120619}}^1$

素因数の和:120634

約数の個数: 36

約数和(自身を含む): 65858520

約数和(自身を除く): 44147100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 120619, 241238, 361857, 482476, 603095, 723714, 1085571, 1206190, 1447428, 1809285, 2171142, 2412380, 3618570, 4342284, 5427855, 7237140, 10855710, 21711420]

約数ペア:

[(1, 21711420), (2, 10855710), (3, 7237140), (4, 5427855), (5, 4342284), (6, 3618570), (9, 2412380), (10, 2171142), (12, 1809285), (15, 1447428), (18, 1206190), (20, 1085571), (30, 723714), (36, 603095), (45, 482476), (60, 361857), (90, 241238), (180, 120619)]