19622968

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{509}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 37944000

約数和(自身を除く): 18321032

約数列:

[1, 2, 4, 8, 61, 79, 122, 158, 244, 316, 488, 509, 632, 1018, 2036, 4072, 4819, 9638, 19276, 31049, 38552, 40211, 62098, 80422, 124196, 160844, 248392, 321688, 2452871, 4905742, 9811484, 19622968]

約数ペア:

[(1, 19622968), (2, 9811484), (4, 4905742), (8, 2452871), (61, 321688), (79, 248392), (122, 160844), (158, 124196), (244, 80422), (316, 62098), (488, 40211), (509, 38552), (632, 31049), (1018, 19276), (2036, 9638), (4072, 4819)]