19844495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 27316224

約数和(自身を除く): 7471729

約数列:

[1, 5, 11, 31, 55, 103, 113, 155, 341, 515, 565, 1133, 1243, 1705, 3193, 3503, 5665, 6215, 11639, 15965, 17515, 35123, 38533, 58195, 128029, 175615, 192665, 360809, 640145, 1804045, 3968899, 19844495]

約数ペア:

[(1, 19844495), (5, 3968899), (11, 1804045), (31, 640145), (55, 360809), (103, 192665), (113, 175615), (155, 128029), (341, 58195), (515, 38533), (565, 35123), (1133, 17515), (1243, 15965), (1705, 11639), (3193, 6215), (3503, 5665)]