19908326

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{331}}^1$

素因数の和:440

約数の個数: 32

約数和(自身を含む): 33346080

約数和(自身を除く): 13437754

約数列:

[1, 2, 17, 29, 34, 58, 61, 122, 331, 493, 662, 986, 1037, 1769, 2074, 3538, 5627, 9599, 11254, 19198, 20191, 30073, 40382, 60146, 163183, 326366, 343247, 585539, 686494, 1171078, 9954163, 19908326]

約数ペア:

[(1, 19908326), (2, 9954163), (17, 1171078), (29, 686494), (34, 585539), (58, 343247), (61, 326366), (122, 163183), (331, 60146), (493, 40382), (662, 30073), (986, 20191), (1037, 19198), (1769, 11254), (2074, 9599), (3538, 5627)]