19695664

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{39709}}^1$

素因数の和:39748

約数の個数: 20

約数和(自身を含む): 39392320

約数和(自身を除く): 19696656

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 39709, 79418, 158836, 317672, 635344, 1230979, 2461958, 4923916, 9847832, 19695664]

約数ペア:

[(1, 19695664), (2, 9847832), (4, 4923916), (8, 2461958), (16, 1230979), (31, 635344), (62, 317672), (124, 158836), (248, 79418), (496, 39709)]