19881148

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{13397}}^1$

素因数の和:13461

約数の個数: 24

約数和(自身を含む): 40515552

約数和(自身を除く): 20634404

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 13397, 26794, 53588, 93779, 187558, 375116, 710041, 1420082, 2840164, 4970287, 9940574, 19881148]

約数ペア:

[(1, 19881148), (2, 9940574), (4, 4970287), (7, 2840164), (14, 1420082), (28, 710041), (53, 375116), (106, 187558), (212, 93779), (371, 53588), (742, 26794), (1484, 13397)]