21530508

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 51861600

約数和(自身を除く): 30331092

約数列:

[1, 2, 3, 4, 6, 12, 53, 97, 106, 159, 194, 212, 291, 318, 349, 388, 582, 636, 698, 1047, 1164, 1396, 2094, 4188, 5141, 10282, 15423, 18497, 20564, 30846, 33853, 36994, 55491, 61692, 67706, 73988, 101559, 110982, 135412, 203118, 221964, 406236, 1794209, 3588418, 5382627, 7176836, 10765254, 21530508]

約数ペア:

[(1, 21530508), (2, 10765254), (3, 7176836), (4, 5382627), (6, 3588418), (12, 1794209), (53, 406236), (97, 221964), (106, 203118), (159, 135412), (194, 110982), (212, 101559), (291, 73988), (318, 67706), (349, 61692), (388, 55491), (582, 36994), (636, 33853), (698, 30846), (1047, 20564), (1164, 18497), (1396, 15423), (2094, 10282), (4188, 5141)]