18721976

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25717}}^1$

素因数の和:25743

約数の個数: 32

約数和(自身を含む): 43206240

約数和(自身を除く): 24484264

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 25717, 51434, 102868, 180019, 205736, 334321, 360038, 668642, 720076, 1337284, 1440152, 2340247, 2674568, 4680494, 9360988, 18721976]

約数ペア:

[(1, 18721976), (2, 9360988), (4, 4680494), (7, 2674568), (8, 2340247), (13, 1440152), (14, 1337284), (26, 720076), (28, 668642), (52, 360038), (56, 334321), (91, 205736), (104, 180019), (182, 102868), (364, 51434), (728, 25717)]