19619984

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{7523}}^1$

素因数の和:7694

約数の個数: 20

約数和(自身を含む): 38252016

約数和(自身を除く): 18632032

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 7523, 15046, 30092, 60184, 120368, 1226249, 2452498, 4904996, 9809992, 19619984]

約数ペア:

[(1, 19619984), (2, 9809992), (4, 4904996), (8, 2452498), (16, 1226249), (163, 120368), (326, 60184), (652, 30092), (1304, 15046), (2608, 7523)]