21565488

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{173}}^1$

素因数の和:251

約数の個数: 120

約数和(自身を含む): 66410928

約数和(自身を除く): 44845440

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 53, 56, 84, 98, 106, 112, 147, 159, 168, 173, 196, 212, 294, 318, 336, 346, 371, 392, 424, 519, 588, 636, 692, 742, 784, 848, 1038, 1113, 1176, 1211, 1272, 1384, 1484, 2076, 2226, 2352, 2422, 2544, 2597, 2768, 2968, 3633, 4152, 4452, 4844, 5194, 5936, 7266, 7791, 8304, 8477, 8904, 9169, 9688, 10388, 14532, 15582, 16954, 17808, 18338, 19376, 20776, 25431, 27507, 29064, 31164, 33908, 36676, 41552, 50862, 55014, 58128, 62328, 64183, 67816, 73352, 101724, 110028, 124656, 128366, 135632, 146704, 192549, 203448, 220056, 256732, 385098, 406896, 440112, 449281, 513464, 770196, 898562, 1026928, 1347843, 1540392, 1797124, 2695686, 3080784, 3594248, 5391372, 7188496, 10782744, 21565488]

約数ペア:

[(1, 21565488), (2, 10782744), (3, 7188496), (4, 5391372), (6, 3594248), (7, 3080784), (8, 2695686), (12, 1797124), (14, 1540392), (16, 1347843), (21, 1026928), (24, 898562), (28, 770196), (42, 513464), (48, 449281), (49, 440112), (53, 406896), (56, 385098), (84, 256732), (98, 220056), (106, 203448), (112, 192549), (147, 146704), (159, 135632), (168, 128366), (173, 124656), (196, 110028), (212, 101724), (294, 73352), (318, 67816), (336, 64183), (346, 62328), (371, 58128), (392, 55014), (424, 50862), (519, 41552), (588, 36676), (636, 33908), (692, 31164), (742, 29064), (784, 27507), (848, 25431), (1038, 20776), (1113, 19376), (1176, 18338), (1211, 17808), (1272, 16954), (1384, 15582), (1484, 14532), (2076, 10388), (2226, 9688), (2352, 9169), (2422, 8904), (2544, 8477), (2597, 8304), (2768, 7791), (2968, 7266), (3633, 5936), (4152, 5194), (4452, 4844)]