21271670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:285

約数の個数: 64

約数和(自身を含む): 46227456

約数和(自身を除く): 24955786

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 43, 70, 74, 86, 185, 191, 215, 259, 301, 370, 382, 430, 518, 602, 955, 1295, 1337, 1505, 1591, 1910, 2590, 2674, 3010, 3182, 6685, 7067, 7955, 8213, 11137, 13370, 14134, 15910, 16426, 22274, 35335, 41065, 49469, 55685, 57491, 70670, 82130, 98938, 111370, 114982, 247345, 287455, 303881, 494690, 574910, 607762, 1519405, 2127167, 3038810, 4254334, 10635835, 21271670]

約数ペア:

[(1, 21271670), (2, 10635835), (5, 4254334), (7, 3038810), (10, 2127167), (14, 1519405), (35, 607762), (37, 574910), (43, 494690), (70, 303881), (74, 287455), (86, 247345), (185, 114982), (191, 111370), (215, 98938), (259, 82130), (301, 70670), (370, 57491), (382, 55685), (430, 49469), (518, 41065), (602, 35335), (955, 22274), (1295, 16426), (1337, 15910), (1505, 14134), (1591, 13370), (1910, 11137), (2590, 8213), (2674, 7955), (3010, 7067), (3182, 6685)]