21331728

素因数分解:

$2^4\times 3^3\times {\mathrm{11}}^1\times {\mathrm{67}}^2$

素因数の和:162

約数の個数: 120

約数和(自身を含む): 67808160

約数和(自身を除く): 46476432

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 33, 36, 44, 48, 54, 66, 67, 72, 88, 99, 108, 132, 134, 144, 176, 198, 201, 216, 264, 268, 297, 396, 402, 432, 528, 536, 594, 603, 737, 792, 804, 1072, 1188, 1206, 1474, 1584, 1608, 1809, 2211, 2376, 2412, 2948, 3216, 3618, 4422, 4489, 4752, 4824, 5896, 6633, 7236, 8844, 8978, 9648, 11792, 13266, 13467, 14472, 17688, 17956, 19899, 26532, 26934, 28944, 35376, 35912, 39798, 40401, 49379, 53064, 53868, 71824, 79596, 80802, 98758, 106128, 107736, 121203, 148137, 159192, 161604, 197516, 215472, 242406, 296274, 318384, 323208, 395032, 444411, 484812, 592548, 646416, 790064, 888822, 969624, 1185096, 1333233, 1777644, 1939248, 2370192, 2666466, 3555288, 5332932, 7110576, 10665864, 21331728]

約数ペア:

[(1, 21331728), (2, 10665864), (3, 7110576), (4, 5332932), (6, 3555288), (8, 2666466), (9, 2370192), (11, 1939248), (12, 1777644), (16, 1333233), (18, 1185096), (22, 969624), (24, 888822), (27, 790064), (33, 646416), (36, 592548), (44, 484812), (48, 444411), (54, 395032), (66, 323208), (67, 318384), (72, 296274), (88, 242406), (99, 215472), (108, 197516), (132, 161604), (134, 159192), (144, 148137), (176, 121203), (198, 107736), (201, 106128), (216, 98758), (264, 80802), (268, 79596), (297, 71824), (396, 53868), (402, 53064), (432, 49379), (528, 40401), (536, 39798), (594, 35912), (603, 35376), (737, 28944), (792, 26934), (804, 26532), (1072, 19899), (1188, 17956), (1206, 17688), (1474, 14472), (1584, 13467), (1608, 13266), (1809, 11792), (2211, 9648), (2376, 8978), (2412, 8844), (2948, 7236), (3216, 6633), (3618, 5896), (4422, 4824), (4489, 4752)]