19818778

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1009}}^1$

素因数の和:1102

約数の個数: 32

約数和(自身を含む): 36069120

約数和(自身を除く): 16250342

約数列:

[1, 2, 7, 14, 23, 46, 61, 122, 161, 322, 427, 854, 1009, 1403, 2018, 2806, 7063, 9821, 14126, 19642, 23207, 46414, 61549, 123098, 162449, 324898, 430843, 861686, 1415627, 2831254, 9909389, 19818778]

約数ペア:

[(1, 19818778), (2, 9909389), (7, 2831254), (14, 1415627), (23, 861686), (46, 430843), (61, 324898), (122, 162449), (161, 123098), (322, 61549), (427, 46414), (854, 23207), (1009, 19642), (1403, 14126), (2018, 9821), (2806, 7063)]