31521854

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 62103552

約数和(自身を除く): 30581698

約数列:

[1, 2, 7, 13, 14, 26, 31, 37, 62, 74, 91, 151, 182, 217, 259, 302, 403, 434, 481, 518, 806, 962, 1057, 1147, 1963, 2114, 2294, 2821, 3367, 3926, 4681, 5587, 5642, 6734, 8029, 9362, 11174, 13741, 14911, 16058, 27482, 29822, 32767, 39109, 60853, 65534, 72631, 78218, 104377, 121706, 145262, 173197, 208754, 346394, 425971, 508417, 851942, 1016834, 1212379, 2251561, 2424758, 4503122, 15760927, 31521854]

約数ペア:

[(1, 31521854), (2, 15760927), (7, 4503122), (13, 2424758), (14, 2251561), (26, 1212379), (31, 1016834), (37, 851942), (62, 508417), (74, 425971), (91, 346394), (151, 208754), (182, 173197), (217, 145262), (259, 121706), (302, 104377), (403, 78218), (434, 72631), (481, 65534), (518, 60853), (806, 39109), (962, 32767), (1057, 29822), (1147, 27482), (1963, 16058), (2114, 14911), (2294, 13741), (2821, 11174), (3367, 9362), (3926, 8029), (4681, 6734), (5587, 5642)]