21991740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:323

約数の個数: 96

約数和(自身を含む): 65802240

約数和(自身を除く): 43810500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 101, 114, 190, 191, 202, 228, 285, 303, 380, 382, 404, 505, 570, 573, 606, 764, 955, 1010, 1140, 1146, 1212, 1515, 1910, 1919, 2020, 2292, 2865, 3030, 3629, 3820, 3838, 5730, 5757, 6060, 7258, 7676, 9595, 10887, 11460, 11514, 14516, 18145, 19190, 19291, 21774, 23028, 28785, 36290, 38380, 38582, 43548, 54435, 57570, 57873, 72580, 77164, 96455, 108870, 115140, 115746, 192910, 217740, 231492, 289365, 366529, 385820, 578730, 733058, 1099587, 1157460, 1466116, 1832645, 2199174, 3665290, 4398348, 5497935, 7330580, 10995870, 21991740]

約数ペア:

[(1, 21991740), (2, 10995870), (3, 7330580), (4, 5497935), (5, 4398348), (6, 3665290), (10, 2199174), (12, 1832645), (15, 1466116), (19, 1157460), (20, 1099587), (30, 733058), (38, 578730), (57, 385820), (60, 366529), (76, 289365), (95, 231492), (101, 217740), (114, 192910), (190, 115746), (191, 115140), (202, 108870), (228, 96455), (285, 77164), (303, 72580), (380, 57873), (382, 57570), (404, 54435), (505, 43548), (570, 38582), (573, 38380), (606, 36290), (764, 28785), (955, 23028), (1010, 21774), (1140, 19291), (1146, 19190), (1212, 18145), (1515, 14516), (1910, 11514), (1919, 11460), (2020, 10887), (2292, 9595), (2865, 7676), (3030, 7258), (3629, 6060), (3820, 5757), (3838, 5730)]