21490056

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{233}}^1$

素因数の和:316

約数の個数: 128

約数和(自身を含む): 69638400

約数和(自身を除く): 48148344

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 61, 63, 72, 84, 108, 122, 126, 168, 183, 189, 216, 233, 244, 252, 366, 378, 427, 466, 488, 504, 549, 699, 732, 756, 854, 932, 1098, 1281, 1398, 1464, 1512, 1631, 1647, 1708, 1864, 2097, 2196, 2562, 2796, 3262, 3294, 3416, 3843, 4194, 4392, 4893, 5124, 5592, 6291, 6524, 6588, 7686, 8388, 9786, 10248, 11529, 12582, 13048, 13176, 14213, 14679, 15372, 16776, 19572, 23058, 25164, 28426, 29358, 30744, 39144, 42639, 44037, 46116, 50328, 56852, 58716, 85278, 88074, 92232, 99491, 113704, 117432, 127917, 170556, 176148, 198982, 255834, 298473, 341112, 352296, 383751, 397964, 511668, 596946, 767502, 795928, 895419, 1023336, 1193892, 1535004, 1790838, 2387784, 2686257, 3070008, 3581676, 5372514, 7163352, 10745028, 21490056]

約数ペア:

[(1, 21490056), (2, 10745028), (3, 7163352), (4, 5372514), (6, 3581676), (7, 3070008), (8, 2686257), (9, 2387784), (12, 1790838), (14, 1535004), (18, 1193892), (21, 1023336), (24, 895419), (27, 795928), (28, 767502), (36, 596946), (42, 511668), (54, 397964), (56, 383751), (61, 352296), (63, 341112), (72, 298473), (84, 255834), (108, 198982), (122, 176148), (126, 170556), (168, 127917), (183, 117432), (189, 113704), (216, 99491), (233, 92232), (244, 88074), (252, 85278), (366, 58716), (378, 56852), (427, 50328), (466, 46116), (488, 44037), (504, 42639), (549, 39144), (699, 30744), (732, 29358), (756, 28426), (854, 25164), (932, 23058), (1098, 19572), (1281, 16776), (1398, 15372), (1464, 14679), (1512, 14213), (1631, 13176), (1647, 13048), (1708, 12582), (1864, 11529), (2097, 10248), (2196, 9786), (2562, 8388), (2796, 7686), (3262, 6588), (3294, 6524), (3416, 6291), (3843, 5592), (4194, 5124), (4392, 4893)]