19791468

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 53818128

約数和(自身を除く): 34026660

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 73, 102, 146, 153, 204, 219, 292, 306, 438, 443, 612, 657, 876, 886, 1241, 1314, 1329, 1772, 2482, 2628, 2658, 3723, 3987, 4964, 5316, 7446, 7531, 7974, 11169, 14892, 15062, 15948, 22338, 22593, 30124, 32339, 44676, 45186, 64678, 67779, 90372, 97017, 129356, 135558, 194034, 271116, 291051, 388068, 549763, 582102, 1099526, 1164204, 1649289, 2199052, 3298578, 4947867, 6597156, 9895734, 19791468]

約数ペア:

[(1, 19791468), (2, 9895734), (3, 6597156), (4, 4947867), (6, 3298578), (9, 2199052), (12, 1649289), (17, 1164204), (18, 1099526), (34, 582102), (36, 549763), (51, 388068), (68, 291051), (73, 271116), (102, 194034), (146, 135558), (153, 129356), (204, 97017), (219, 90372), (292, 67779), (306, 64678), (438, 45186), (443, 44676), (612, 32339), (657, 30124), (876, 22593), (886, 22338), (1241, 15948), (1314, 15062), (1329, 14892), (1772, 11169), (2482, 7974), (2628, 7531), (2658, 7446), (3723, 5316), (3987, 4964)]