21586000

素因数分解:

$2^4\times 5^3\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:317

約数の個数: 80

約数和(自身を含む): 53621568

約数和(自身を除く): 32035568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 125, 172, 200, 215, 250, 251, 344, 400, 430, 500, 502, 688, 860, 1000, 1004, 1075, 1255, 1720, 2000, 2008, 2150, 2510, 3440, 4016, 4300, 5020, 5375, 6275, 8600, 10040, 10750, 10793, 12550, 17200, 20080, 21500, 21586, 25100, 31375, 43000, 43172, 50200, 53965, 62750, 86000, 86344, 100400, 107930, 125500, 172688, 215860, 251000, 269825, 431720, 502000, 539650, 863440, 1079300, 1349125, 2158600, 2698250, 4317200, 5396500, 10793000, 21586000]

約数ペア:

[(1, 21586000), (2, 10793000), (4, 5396500), (5, 4317200), (8, 2698250), (10, 2158600), (16, 1349125), (20, 1079300), (25, 863440), (40, 539650), (43, 502000), (50, 431720), (80, 269825), (86, 251000), (100, 215860), (125, 172688), (172, 125500), (200, 107930), (215, 100400), (250, 86344), (251, 86000), (344, 62750), (400, 53965), (430, 50200), (500, 43172), (502, 43000), (688, 31375), (860, 25100), (1000, 21586), (1004, 21500), (1075, 20080), (1255, 17200), (1720, 12550), (2000, 10793), (2008, 10750), (2150, 10040), (2510, 8600), (3440, 6275), (4016, 5375), (4300, 5020)]