21638904

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{853}}^1$

素因数の和:1020

約数の個数: 64

約数和(自身を含む): 62307840

約数和(自身を除く): 40668936

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 151, 168, 302, 453, 604, 853, 906, 1057, 1208, 1706, 1812, 2114, 2559, 3171, 3412, 3624, 4228, 5118, 5971, 6342, 6824, 8456, 10236, 11942, 12684, 17913, 20472, 23884, 25368, 35826, 47768, 71652, 128803, 143304, 257606, 386409, 515212, 772818, 901621, 1030424, 1545636, 1803242, 2704863, 3091272, 3606484, 5409726, 7212968, 10819452, 21638904]

約数ペア:

[(1, 21638904), (2, 10819452), (3, 7212968), (4, 5409726), (6, 3606484), (7, 3091272), (8, 2704863), (12, 1803242), (14, 1545636), (21, 1030424), (24, 901621), (28, 772818), (42, 515212), (56, 386409), (84, 257606), (151, 143304), (168, 128803), (302, 71652), (453, 47768), (604, 35826), (853, 25368), (906, 23884), (1057, 20472), (1208, 17913), (1706, 12684), (1812, 11942), (2114, 10236), (2559, 8456), (3171, 6824), (3412, 6342), (3624, 5971), (4228, 5118)]