19940218

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{593}}^1$

素因数の和:678

約数の個数: 32

約数和(自身を含む): 33872256

約数和(自身を除く): 13932038

約数列:

[1, 2, 17, 23, 34, 43, 46, 86, 391, 593, 731, 782, 989, 1186, 1462, 1978, 10081, 13639, 16813, 20162, 25499, 27278, 33626, 50998, 231863, 433483, 463726, 586477, 866966, 1172954, 9970109, 19940218]

約数ペア:

[(1, 19940218), (2, 9970109), (17, 1172954), (23, 866966), (34, 586477), (43, 463726), (46, 433483), (86, 231863), (391, 50998), (593, 33626), (731, 27278), (782, 25499), (989, 20162), (1186, 16813), (1462, 13639), (1978, 10081)]