19217968

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:866

約数の個数: 80

約数和(自身を含む): 48925440

約数和(自身を除く): 29707472

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 56, 76, 77, 88, 112, 133, 152, 154, 176, 209, 266, 304, 308, 418, 532, 616, 821, 836, 1064, 1232, 1463, 1642, 1672, 2128, 2926, 3284, 3344, 5747, 5852, 6568, 9031, 11494, 11704, 13136, 15599, 18062, 22988, 23408, 31198, 36124, 45976, 62396, 63217, 72248, 91952, 109193, 124792, 126434, 144496, 171589, 218386, 249584, 252868, 343178, 436772, 505736, 686356, 873544, 1011472, 1201123, 1372712, 1747088, 2402246, 2745424, 4804492, 9608984, 19217968]

約数ペア:

[(1, 19217968), (2, 9608984), (4, 4804492), (7, 2745424), (8, 2402246), (11, 1747088), (14, 1372712), (16, 1201123), (19, 1011472), (22, 873544), (28, 686356), (38, 505736), (44, 436772), (56, 343178), (76, 252868), (77, 249584), (88, 218386), (112, 171589), (133, 144496), (152, 126434), (154, 124792), (176, 109193), (209, 91952), (266, 72248), (304, 63217), (308, 62396), (418, 45976), (532, 36124), (616, 31198), (821, 23408), (836, 22988), (1064, 18062), (1232, 15599), (1463, 13136), (1642, 11704), (1672, 11494), (2128, 9031), (2926, 6568), (3284, 5852), (3344, 5747)]