21233056

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1187}}^1$

素因数の和:1253

約数の個数: 48

約数和(自身を含む): 46103904

約数和(自身を除く): 24870848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1187, 1376, 2236, 2374, 4472, 4748, 8944, 9496, 15431, 17888, 18992, 30862, 37984, 51041, 61724, 102082, 123448, 204164, 246896, 408328, 493792, 663533, 816656, 1327066, 1633312, 2654132, 5308264, 10616528, 21233056]

約数ペア:

[(1, 21233056), (2, 10616528), (4, 5308264), (8, 2654132), (13, 1633312), (16, 1327066), (26, 816656), (32, 663533), (43, 493792), (52, 408328), (86, 246896), (104, 204164), (172, 123448), (208, 102082), (344, 61724), (416, 51041), (559, 37984), (688, 30862), (1118, 18992), (1187, 17888), (1376, 15431), (2236, 9496), (2374, 8944), (4472, 4748)]