19783988

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{467}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 22672972

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 89, 119, 178, 238, 356, 467, 476, 623, 934, 1246, 1513, 1868, 2492, 3026, 3269, 6052, 6538, 7939, 10591, 13076, 15878, 21182, 31756, 41563, 42364, 55573, 83126, 111146, 166252, 222292, 290941, 581882, 706571, 1163764, 1413142, 2826284, 4945997, 9891994, 19783988]

約数ペア:

[(1, 19783988), (2, 9891994), (4, 4945997), (7, 2826284), (14, 1413142), (17, 1163764), (28, 706571), (34, 581882), (68, 290941), (89, 222292), (119, 166252), (178, 111146), (238, 83126), (356, 55573), (467, 42364), (476, 41563), (623, 31756), (934, 21182), (1246, 15878), (1513, 13076), (1868, 10591), (2492, 7939), (3026, 6538), (3269, 6052)]