19819388

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1889}}^1$

素因数の和:1997

約数の個数: 24

約数和(自身を含む): 36091440

約数和(自身を除く): 16272052

約数列:

[1, 2, 4, 43, 61, 86, 122, 172, 244, 1889, 2623, 3778, 5246, 7556, 10492, 81227, 115229, 162454, 230458, 324908, 460916, 4954847, 9909694, 19819388]

約数ペア:

[(1, 19819388), (2, 9909694), (4, 4954847), (43, 460916), (61, 324908), (86, 230458), (122, 162454), (172, 115229), (244, 81227), (1889, 10492), (2623, 7556), (3778, 5246)]