216455679

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1$

素因数の和:1077

約数の個数: 64

約数和(自身を含む): 379399680

約数和(自身を除く): 162944001

約数列:

[1, 3, 9, 11, 17, 27, 33, 43, 51, 99, 129, 153, 187, 297, 387, 459, 473, 561, 731, 997, 1161, 1419, 1683, 2193, 2991, 4257, 5049, 6579, 8041, 8973, 10967, 12771, 16949, 19737, 24123, 26919, 32901, 42871, 50847, 72369, 98703, 128613, 152541, 186439, 217107, 296109, 385839, 457623, 471581, 559317, 728807, 1157517, 1414743, 1677951, 2186421, 4244229, 5033853, 6559263, 8016877, 12732687, 19677789, 24050631, 72151893, 216455679]

約数ペア:

[(1, 216455679), (3, 72151893), (9, 24050631), (11, 19677789), (17, 12732687), (27, 8016877), (33, 6559263), (43, 5033853), (51, 4244229), (99, 2186421), (129, 1677951), (153, 1414743), (187, 1157517), (297, 728807), (387, 559317), (459, 471581), (473, 457623), (561, 385839), (731, 296109), (997, 217107), (1161, 186439), (1419, 152541), (1683, 128613), (2193, 98703), (2991, 72369), (4257, 50847), (5049, 42871), (6579, 32901), (8041, 26919), (8973, 24123), (10967, 19737), (12771, 16949)]