216681816

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{521}}^1$

素因数の和:617

約数の個数: 128

約数和(自身を含む): 617379840

約数和(自身を除く): 400698024

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 43, 52, 62, 78, 86, 93, 104, 124, 129, 156, 172, 186, 248, 258, 312, 344, 372, 403, 516, 521, 559, 744, 806, 1032, 1042, 1118, 1209, 1333, 1563, 1612, 1677, 2084, 2236, 2418, 2666, 3126, 3224, 3354, 3999, 4168, 4472, 4836, 5332, 6252, 6708, 6773, 7998, 9672, 10664, 12504, 13416, 13546, 15996, 16151, 17329, 20319, 22403, 27092, 31992, 32302, 34658, 40638, 44806, 48453, 51987, 54184, 64604, 67209, 69316, 81276, 89612, 96906, 103974, 129208, 134418, 138632, 162552, 179224, 193812, 207948, 209963, 268836, 291239, 387624, 415896, 419926, 537672, 582478, 629889, 694493, 839852, 873717, 1164956, 1259778, 1388986, 1679704, 1747434, 2083479, 2329912, 2519556, 2777972, 3494868, 4166958, 5039112, 5555944, 6989736, 8333916, 9028409, 16667832, 18056818, 27085227, 36113636, 54170454, 72227272, 108340908, 216681816]

約数ペア:

[(1, 216681816), (2, 108340908), (3, 72227272), (4, 54170454), (6, 36113636), (8, 27085227), (12, 18056818), (13, 16667832), (24, 9028409), (26, 8333916), (31, 6989736), (39, 5555944), (43, 5039112), (52, 4166958), (62, 3494868), (78, 2777972), (86, 2519556), (93, 2329912), (104, 2083479), (124, 1747434), (129, 1679704), (156, 1388986), (172, 1259778), (186, 1164956), (248, 873717), (258, 839852), (312, 694493), (344, 629889), (372, 582478), (403, 537672), (516, 419926), (521, 415896), (559, 387624), (744, 291239), (806, 268836), (1032, 209963), (1042, 207948), (1118, 193812), (1209, 179224), (1333, 162552), (1563, 138632), (1612, 134418), (1677, 129208), (2084, 103974), (2236, 96906), (2418, 89612), (2666, 81276), (3126, 69316), (3224, 67209), (3354, 64604), (3999, 54184), (4168, 51987), (4472, 48453), (4836, 44806), (5332, 40638), (6252, 34658), (6708, 32302), (6773, 31992), (7998, 27092), (9672, 22403), (10664, 20319), (12504, 17329), (13416, 16151), (13546, 15996)]