18447728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2861}}^1$

素因数の和:2913

約数の個数: 40

約数和(自身を含む): 39747456

約数和(自身を除く): 21299728

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 2861, 3224, 5722, 6448, 11444, 22888, 37193, 45776, 74386, 88691, 148772, 177382, 297544, 354764, 595088, 709528, 1152983, 1419056, 2305966, 4611932, 9223864, 18447728]

約数ペア:

[(1, 18447728), (2, 9223864), (4, 4611932), (8, 2305966), (13, 1419056), (16, 1152983), (26, 709528), (31, 595088), (52, 354764), (62, 297544), (104, 177382), (124, 148772), (208, 88691), (248, 74386), (403, 45776), (496, 37193), (806, 22888), (1612, 11444), (2861, 6448), (3224, 5722)]