19605808

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{18289}}^1$

素因数の和:18364

約数の個数: 20

約数和(自身を含む): 38555320

約数和(自身を除く): 18949512

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 18289, 36578, 73156, 146312, 292624, 1225363, 2450726, 4901452, 9802904, 19605808]

約数ペア:

[(1, 19605808), (2, 9802904), (4, 4901452), (8, 2450726), (16, 1225363), (67, 292624), (134, 146312), (268, 73156), (536, 36578), (1072, 18289)]