21000608650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8571677}}^1$

素因数の和:8571703

約数の個数: 36

約数和(自身を含む): 45438465078

約数和(自身を除く): 24437856428

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8571677, 17143354, 42858385, 60001739, 85716770, 120003478, 214291925, 300008695, 420012173, 428583850, 600017390, 840024346, 1500043475, 2100060865, 3000086950, 4200121730, 10500304325, 21000608650]

約数ペア:

[(1, 21000608650), (2, 10500304325), (5, 4200121730), (7, 3000086950), (10, 2100060865), (14, 1500043475), (25, 840024346), (35, 600017390), (49, 428583850), (50, 420012173), (70, 300008695), (98, 214291925), (175, 120003478), (245, 85716770), (350, 60001739), (490, 42858385), (1225, 17143354), (2450, 8571677)]