20852678

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 41361408

約数和(自身を除く): 20508730

約数列:

[1, 2, 7, 11, 14, 22, 43, 47, 67, 77, 86, 94, 134, 154, 301, 329, 469, 473, 517, 602, 658, 737, 938, 946, 1034, 1474, 2021, 2881, 3149, 3311, 3619, 4042, 5159, 5762, 6298, 6622, 7238, 10318, 14147, 20167, 22043, 22231, 28294, 31691, 34639, 40334, 44086, 44462, 63382, 69278, 135407, 155617, 221837, 242473, 270814, 311234, 443674, 484946, 947849, 1489477, 1895698, 2978954, 10426339, 20852678]

約数ペア:

[(1, 20852678), (2, 10426339), (7, 2978954), (11, 1895698), (14, 1489477), (22, 947849), (43, 484946), (47, 443674), (67, 311234), (77, 270814), (86, 242473), (94, 221837), (134, 155617), (154, 135407), (301, 69278), (329, 63382), (469, 44462), (473, 44086), (517, 40334), (602, 34639), (658, 31691), (737, 28294), (938, 22231), (946, 22043), (1034, 20167), (1474, 14147), (2021, 10318), (2881, 7238), (3149, 6622), (3311, 6298), (3619, 5762), (4042, 5159)]