21900550

素因数分解:

$2^1\times 5^2\times 7^3\times {\mathrm{1277}}^1$

素因数の和:1310

約数の個数: 48

約数和(自身を含む): 47541600

約数和(自身を除く): 25641050

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 343, 350, 490, 686, 1225, 1277, 1715, 2450, 2554, 3430, 6385, 8575, 8939, 12770, 17150, 17878, 31925, 44695, 62573, 63850, 89390, 125146, 223475, 312865, 438011, 446950, 625730, 876022, 1564325, 2190055, 3128650, 4380110, 10950275, 21900550]

約数ペア:

[(1, 21900550), (2, 10950275), (5, 4380110), (7, 3128650), (10, 2190055), (14, 1564325), (25, 876022), (35, 625730), (49, 446950), (50, 438011), (70, 312865), (98, 223475), (175, 125146), (245, 89390), (343, 63850), (350, 62573), (490, 44695), (686, 31925), (1225, 17878), (1277, 17150), (1715, 12770), (2450, 8939), (2554, 8575), (3430, 6385)]