19915192

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 44035200

約数和(自身を除く): 24120008

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 43, 44, 76, 86, 88, 152, 172, 209, 277, 344, 418, 473, 554, 817, 836, 946, 1108, 1634, 1672, 1892, 2216, 3047, 3268, 3784, 5263, 6094, 6536, 8987, 10526, 11911, 12188, 17974, 21052, 23822, 24376, 35948, 42104, 47644, 57893, 71896, 95288, 115786, 131021, 226309, 231572, 262042, 452618, 463144, 524084, 905236, 1048168, 1810472, 2489399, 4978798, 9957596, 19915192]

約数ペア:

[(1, 19915192), (2, 9957596), (4, 4978798), (8, 2489399), (11, 1810472), (19, 1048168), (22, 905236), (38, 524084), (43, 463144), (44, 452618), (76, 262042), (86, 231572), (88, 226309), (152, 131021), (172, 115786), (209, 95288), (277, 71896), (344, 57893), (418, 47644), (473, 42104), (554, 35948), (817, 24376), (836, 23822), (946, 21052), (1108, 17974), (1634, 12188), (1672, 11911), (1892, 10526), (2216, 8987), (3047, 6536), (3268, 6094), (3784, 5263)]