18105568

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{613}}^1$

素因数の和:707

約数の個数: 48

約数和(自身を含む): 38991456

約数和(自身を除く): 20885888

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 71, 104, 142, 208, 284, 416, 568, 613, 923, 1136, 1226, 1846, 2272, 2452, 3692, 4904, 7384, 7969, 9808, 14768, 15938, 19616, 29536, 31876, 43523, 63752, 87046, 127504, 174092, 255008, 348184, 565799, 696368, 1131598, 1392736, 2263196, 4526392, 9052784, 18105568]

約数ペア:

[(1, 18105568), (2, 9052784), (4, 4526392), (8, 2263196), (13, 1392736), (16, 1131598), (26, 696368), (32, 565799), (52, 348184), (71, 255008), (104, 174092), (142, 127504), (208, 87046), (284, 63752), (416, 43523), (568, 31876), (613, 29536), (923, 19616), (1136, 15938), (1226, 14768), (1846, 9808), (2272, 7969), (2452, 7384), (3692, 4904)]