19897072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{331}}^1$

素因数の和:386

約数の個数: 60

約数和(自身を含む): 44235016

約数和(自身を除く): 24337944

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 289, 331, 442, 578, 662, 884, 1156, 1324, 1768, 2312, 2648, 3536, 3757, 4303, 4624, 5296, 5627, 7514, 8606, 11254, 15028, 17212, 22508, 30056, 34424, 45016, 60112, 68848, 73151, 90032, 95659, 146302, 191318, 292604, 382636, 585208, 765272, 1170416, 1243567, 1530544, 2487134, 4974268, 9948536, 19897072]

約数ペア:

[(1, 19897072), (2, 9948536), (4, 4974268), (8, 2487134), (13, 1530544), (16, 1243567), (17, 1170416), (26, 765272), (34, 585208), (52, 382636), (68, 292604), (104, 191318), (136, 146302), (208, 95659), (221, 90032), (272, 73151), (289, 68848), (331, 60112), (442, 45016), (578, 34424), (662, 30056), (884, 22508), (1156, 17212), (1324, 15028), (1768, 11254), (2312, 8606), (2648, 7514), (3536, 5627), (3757, 5296), (4303, 4624)]