21850576

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:212

約数の個数: 80

約数和(自身を含む): 50086080

約数和(自身を除く): 28235504

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 67, 68, 88, 109, 134, 136, 176, 187, 218, 268, 272, 374, 436, 536, 737, 748, 872, 1072, 1139, 1199, 1474, 1496, 1744, 1853, 2278, 2398, 2948, 2992, 3706, 4556, 4796, 5896, 7303, 7412, 9112, 9592, 11792, 12529, 14606, 14824, 18224, 19184, 20383, 25058, 29212, 29648, 40766, 50116, 58424, 80333, 81532, 100232, 116848, 124151, 160666, 163064, 200464, 248302, 321332, 326128, 496604, 642664, 993208, 1285328, 1365661, 1986416, 2731322, 5462644, 10925288, 21850576]

約数ペア:

[(1, 21850576), (2, 10925288), (4, 5462644), (8, 2731322), (11, 1986416), (16, 1365661), (17, 1285328), (22, 993208), (34, 642664), (44, 496604), (67, 326128), (68, 321332), (88, 248302), (109, 200464), (134, 163064), (136, 160666), (176, 124151), (187, 116848), (218, 100232), (268, 81532), (272, 80333), (374, 58424), (436, 50116), (536, 40766), (737, 29648), (748, 29212), (872, 25058), (1072, 20383), (1139, 19184), (1199, 18224), (1474, 14824), (1496, 14606), (1744, 12529), (1853, 11792), (2278, 9592), (2398, 9112), (2948, 7412), (2992, 7303), (3706, 5896), (4556, 4796)]