21384288

素因数分解:

$2^5\times 3^2\times {\mathrm{41}}^1\times {\mathrm{1811}}^1$

素因数の和:1868

約数の個数: 72

約数和(自身を含む): 62329176

約数和(自身を除く): 40944888

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 41, 48, 72, 82, 96, 123, 144, 164, 246, 288, 328, 369, 492, 656, 738, 984, 1312, 1476, 1811, 1968, 2952, 3622, 3936, 5433, 5904, 7244, 10866, 11808, 14488, 16299, 21732, 28976, 32598, 43464, 57952, 65196, 74251, 86928, 130392, 148502, 173856, 222753, 260784, 297004, 445506, 521568, 594008, 668259, 891012, 1188016, 1336518, 1782024, 2376032, 2673036, 3564048, 5346072, 7128096, 10692144, 21384288]

約数ペア:

[(1, 21384288), (2, 10692144), (3, 7128096), (4, 5346072), (6, 3564048), (8, 2673036), (9, 2376032), (12, 1782024), (16, 1336518), (18, 1188016), (24, 891012), (32, 668259), (36, 594008), (41, 521568), (48, 445506), (72, 297004), (82, 260784), (96, 222753), (123, 173856), (144, 148502), (164, 130392), (246, 86928), (288, 74251), (328, 65196), (369, 57952), (492, 43464), (656, 32598), (738, 28976), (984, 21732), (1312, 16299), (1476, 14488), (1811, 11808), (1968, 10866), (2952, 7244), (3622, 5904), (3936, 5433)]