21797904

素因数分解:

$2^4\times 3^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1$

素因数の和:292

約数の個数: 80

約数和(自身を含む): 58924800

約数和(自身を除く): 37126896

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 43, 48, 59, 86, 118, 129, 172, 177, 179, 236, 258, 344, 354, 358, 472, 516, 537, 688, 708, 716, 944, 1032, 1074, 1416, 1432, 2064, 2148, 2537, 2832, 2864, 4296, 5074, 7611, 7697, 8592, 10148, 10561, 15222, 15394, 20296, 21122, 23091, 30444, 30788, 31683, 40592, 42244, 46182, 60888, 61576, 63366, 84488, 92364, 121776, 123152, 126732, 168976, 184728, 253464, 369456, 454123, 506928, 908246, 1362369, 1816492, 2724738, 3632984, 5449476, 7265968, 10898952, 21797904]

約数ペア:

[(1, 21797904), (2, 10898952), (3, 7265968), (4, 5449476), (6, 3632984), (8, 2724738), (12, 1816492), (16, 1362369), (24, 908246), (43, 506928), (48, 454123), (59, 369456), (86, 253464), (118, 184728), (129, 168976), (172, 126732), (177, 123152), (179, 121776), (236, 92364), (258, 84488), (344, 63366), (354, 61576), (358, 60888), (472, 46182), (516, 42244), (537, 40592), (688, 31683), (708, 30788), (716, 30444), (944, 23091), (1032, 21122), (1074, 20296), (1416, 15394), (1432, 15222), (2064, 10561), (2148, 10148), (2537, 8592), (2832, 7697), (2864, 7611), (4296, 5074)]