218362419

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:729

約数の個数: 64

約数和(自身を含む): 374722560

約数和(自身を除く): 156360141

約数列:

[1, 3, 9, 11, 27, 31, 33, 37, 93, 99, 111, 279, 297, 333, 341, 407, 641, 837, 999, 1023, 1147, 1221, 1923, 3069, 3441, 3663, 5769, 7051, 9207, 10323, 10989, 12617, 17307, 19871, 21153, 23717, 30969, 37851, 59613, 63459, 71151, 113553, 178839, 190377, 213453, 218581, 260887, 340659, 536517, 640359, 655743, 735227, 782661, 1967229, 2205681, 2347983, 5901687, 6617043, 7043949, 8087497, 19851129, 24262491, 72787473, 218362419]

約数ペア:

[(1, 218362419), (3, 72787473), (9, 24262491), (11, 19851129), (27, 8087497), (31, 7043949), (33, 6617043), (37, 5901687), (93, 2347983), (99, 2205681), (111, 1967229), (279, 782661), (297, 735227), (333, 655743), (341, 640359), (407, 536517), (641, 340659), (837, 260887), (999, 218581), (1023, 213453), (1147, 190377), (1221, 178839), (1923, 113553), (3069, 71151), (3441, 63459), (3663, 59613), (5769, 37851), (7051, 30969), (9207, 23717), (10323, 21153), (10989, 19871), (12617, 17307)]