217122570

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{344639}}^1$

素因数の和:344659

約数の個数: 48

約数和(自身を含む): 645166080

約数和(自身を除く): 428043510

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 344639, 689278, 1033917, 1723195, 2067834, 2412473, 3101751, 3446390, 4824946, 5169585, 6203502, 7237419, 10339170, 12062365, 14474838, 15508755, 21712257, 24124730, 31017510, 36187095, 43424514, 72374190, 108561285, 217122570]

約数ペア:

[(1, 217122570), (2, 108561285), (3, 72374190), (5, 43424514), (6, 36187095), (7, 31017510), (9, 24124730), (10, 21712257), (14, 15508755), (15, 14474838), (18, 12062365), (21, 10339170), (30, 7237419), (35, 6203502), (42, 5169585), (45, 4824946), (63, 3446390), (70, 3101751), (90, 2412473), (105, 2067834), (126, 1723195), (210, 1033917), (315, 689278), (630, 344639)]