18897786

素因数分解:

$2^1\times 3^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:169

約数の個数: 80

約数和(自身を含む): 45163008

約数和(自身を除く): 26265222

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 53, 54, 62, 71, 81, 93, 106, 142, 159, 162, 186, 213, 279, 318, 426, 477, 558, 639, 837, 954, 1278, 1431, 1643, 1674, 1917, 2201, 2511, 2862, 3286, 3763, 3834, 4293, 4402, 4929, 5022, 5751, 6603, 7526, 8586, 9858, 11289, 11502, 13206, 14787, 19809, 22578, 29574, 33867, 39618, 44361, 59427, 67734, 88722, 101601, 116653, 118854, 133083, 178281, 203202, 233306, 266166, 304803, 349959, 356562, 609606, 699918, 1049877, 2099754, 3149631, 6299262, 9448893, 18897786]

約数ペア:

[(1, 18897786), (2, 9448893), (3, 6299262), (6, 3149631), (9, 2099754), (18, 1049877), (27, 699918), (31, 609606), (53, 356562), (54, 349959), (62, 304803), (71, 266166), (81, 233306), (93, 203202), (106, 178281), (142, 133083), (159, 118854), (162, 116653), (186, 101601), (213, 88722), (279, 67734), (318, 59427), (426, 44361), (477, 39618), (558, 33867), (639, 29574), (837, 22578), (954, 19809), (1278, 14787), (1431, 13206), (1643, 11502), (1674, 11289), (1917, 9858), (2201, 8586), (2511, 7526), (2862, 6603), (3286, 5751), (3763, 5022), (3834, 4929), (4293, 4402)]