19317664

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:293

約数の個数: 48

約数和(自身を含む): 39584160

約数和(自身を除く): 20266496

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 101, 139, 172, 202, 278, 344, 404, 556, 688, 808, 1112, 1376, 1616, 2224, 3232, 4343, 4448, 5977, 8686, 11954, 14039, 17372, 23908, 28078, 34744, 47816, 56156, 69488, 95632, 112312, 138976, 191264, 224624, 449248, 603677, 1207354, 2414708, 4829416, 9658832, 19317664]

約数ペア:

[(1, 19317664), (2, 9658832), (4, 4829416), (8, 2414708), (16, 1207354), (32, 603677), (43, 449248), (86, 224624), (101, 191264), (139, 138976), (172, 112312), (202, 95632), (278, 69488), (344, 56156), (404, 47816), (556, 34744), (688, 28078), (808, 23908), (1112, 17372), (1376, 14039), (1616, 11954), (2224, 8686), (3232, 5977), (4343, 4448)]