18947922

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1$

素因数の和:275

約数の個数: 64

約数和(自身を含む): 45308160

約数和(自身を除く): 26360238

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 89, 111, 137, 178, 222, 259, 267, 274, 411, 518, 534, 623, 777, 822, 959, 1246, 1554, 1869, 1918, 2877, 3293, 3738, 5069, 5754, 6586, 9879, 10138, 12193, 15207, 19758, 23051, 24386, 30414, 35483, 36579, 46102, 69153, 70966, 73158, 85351, 106449, 138306, 170702, 212898, 256053, 451141, 512106, 902282, 1353423, 2706846, 3157987, 6315974, 9473961, 18947922]

約数ペア:

[(1, 18947922), (2, 9473961), (3, 6315974), (6, 3157987), (7, 2706846), (14, 1353423), (21, 902282), (37, 512106), (42, 451141), (74, 256053), (89, 212898), (111, 170702), (137, 138306), (178, 106449), (222, 85351), (259, 73158), (267, 70966), (274, 69153), (411, 46102), (518, 36579), (534, 35483), (623, 30414), (777, 24386), (822, 23051), (959, 19758), (1246, 15207), (1554, 12193), (1869, 10138), (1918, 9879), (2877, 6586), (3293, 5754), (3738, 5069)]