21158150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{757}}^1$

素因数の和:825

約数の個数: 48

約数和(自身を含む): 43424304

約数和(自身を除く): 22266154

約数列:

[1, 2, 5, 10, 13, 25, 26, 43, 50, 65, 86, 130, 215, 325, 430, 559, 650, 757, 1075, 1118, 1514, 2150, 2795, 3785, 5590, 7570, 9841, 13975, 18925, 19682, 27950, 32551, 37850, 49205, 65102, 98410, 162755, 246025, 325510, 423163, 492050, 813775, 846326, 1627550, 2115815, 4231630, 10579075, 21158150]

約数ペア:

[(1, 21158150), (2, 10579075), (5, 4231630), (10, 2115815), (13, 1627550), (25, 846326), (26, 813775), (43, 492050), (50, 423163), (65, 325510), (86, 246025), (130, 162755), (215, 98410), (325, 65102), (430, 49205), (559, 37850), (650, 32551), (757, 27950), (1075, 19682), (1118, 18925), (1514, 13975), (2150, 9841), (2795, 7570), (3785, 5590)]