21400974

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5479}}^1$

素因数の和:5525

約数の個数: 48

約数和(自身を含む): 54712320

約数和(自身を除く): 33311346

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 558, 651, 1302, 1953, 3906, 5479, 10958, 16437, 32874, 38353, 49311, 76706, 98622, 115059, 169849, 230118, 339698, 345177, 509547, 690354, 1019094, 1188943, 1528641, 2377886, 3057282, 3566829, 7133658, 10700487, 21400974]

約数ペア:

[(1, 21400974), (2, 10700487), (3, 7133658), (6, 3566829), (7, 3057282), (9, 2377886), (14, 1528641), (18, 1188943), (21, 1019094), (31, 690354), (42, 509547), (62, 345177), (63, 339698), (93, 230118), (126, 169849), (186, 115059), (217, 98622), (279, 76706), (434, 49311), (558, 38353), (651, 32874), (1302, 16437), (1953, 10958), (3906, 5479)]