19899776

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{11959}}^1$

素因数の和:11986

約数の個数: 32

約数和(自身を含む): 42697200

約数和(自身を除く): 22797424

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 11959, 23918, 47836, 95672, 155467, 191344, 310934, 382688, 621868, 765376, 1243736, 1530752, 2487472, 4974944, 9949888, 19899776]

約数ペア:

[(1, 19899776), (2, 9949888), (4, 4974944), (8, 2487472), (13, 1530752), (16, 1243736), (26, 765376), (32, 621868), (52, 382688), (64, 310934), (104, 191344), (128, 155467), (208, 95672), (416, 47836), (832, 23918), (1664, 11959)]