21249072

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{11351}}^1$

素因数の和:11378

約数の個数: 60

約数和(自身を含む): 64047984

約数和(自身を除く): 42798912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 11351, 22702, 34053, 45404, 68106, 90808, 102159, 136212, 147563, 181616, 204318, 272424, 295126, 408636, 442689, 544848, 590252, 817272, 885378, 1180504, 1328067, 1634544, 1770756, 2361008, 2656134, 3541512, 5312268, 7083024, 10624536, 21249072]

約数ペア:

[(1, 21249072), (2, 10624536), (3, 7083024), (4, 5312268), (6, 3541512), (8, 2656134), (9, 2361008), (12, 1770756), (13, 1634544), (16, 1328067), (18, 1180504), (24, 885378), (26, 817272), (36, 590252), (39, 544848), (48, 442689), (52, 408636), (72, 295126), (78, 272424), (104, 204318), (117, 181616), (144, 147563), (156, 136212), (208, 102159), (234, 90808), (312, 68106), (468, 45404), (624, 34053), (936, 22702), (1872, 11351)]