19911408

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{877}}^1$

素因数の和:942

約数の個数: 80

約数和(自身を含む): 57484416

約数和(自身を除く): 37573008

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 43, 44, 48, 66, 86, 88, 129, 132, 172, 176, 258, 264, 344, 473, 516, 528, 688, 877, 946, 1032, 1419, 1754, 1892, 2064, 2631, 2838, 3508, 3784, 5262, 5676, 7016, 7568, 9647, 10524, 11352, 14032, 19294, 21048, 22704, 28941, 37711, 38588, 42096, 57882, 75422, 77176, 113133, 115764, 150844, 154352, 226266, 231528, 301688, 414821, 452532, 463056, 603376, 829642, 905064, 1244463, 1659284, 1810128, 2488926, 3318568, 4977852, 6637136, 9955704, 19911408]

約数ペア:

[(1, 19911408), (2, 9955704), (3, 6637136), (4, 4977852), (6, 3318568), (8, 2488926), (11, 1810128), (12, 1659284), (16, 1244463), (22, 905064), (24, 829642), (33, 603376), (43, 463056), (44, 452532), (48, 414821), (66, 301688), (86, 231528), (88, 226266), (129, 154352), (132, 150844), (172, 115764), (176, 113133), (258, 77176), (264, 75422), (344, 57882), (473, 42096), (516, 38588), (528, 37711), (688, 28941), (877, 22704), (946, 21048), (1032, 19294), (1419, 14032), (1754, 11352), (1892, 10524), (2064, 9647), (2631, 7568), (2838, 7016), (3508, 5676), (3784, 5262)]