21258650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{8677}}^1$

素因数の和:8703

約数の個数: 36

約数和(自身を含む): 46002078

約数和(自身を除く): 24743428

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 175, 245, 350, 490, 1225, 2450, 8677, 17354, 43385, 60739, 86770, 121478, 216925, 303695, 425173, 433850, 607390, 850346, 1518475, 2125865, 3036950, 4251730, 10629325, 21258650]

約数ペア:

[(1, 21258650), (2, 10629325), (5, 4251730), (7, 3036950), (10, 2125865), (14, 1518475), (25, 850346), (35, 607390), (49, 433850), (50, 425173), (70, 303695), (98, 216925), (175, 121478), (245, 86770), (350, 60739), (490, 43385), (1225, 17354), (2450, 8677)]