18891952

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4357}}^1$

素因数の和:4636

約数の個数: 20

約数和(自身を含む): 36746656

約数和(自身を除く): 17854704

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4357, 8714, 17428, 34856, 69712, 1180747, 2361494, 4722988, 9445976, 18891952]

約数ペア:

[(1, 18891952), (2, 9445976), (4, 4722988), (8, 2361494), (16, 1180747), (271, 69712), (542, 34856), (1084, 17428), (2168, 8714), (4336, 4357)]