21205366

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 41674752

約数和(自身を除く): 20469386

約数列:

[1, 2, 7, 13, 14, 26, 37, 47, 67, 74, 91, 94, 134, 182, 259, 329, 469, 481, 518, 611, 658, 871, 938, 962, 1222, 1739, 1742, 2479, 3149, 3367, 3478, 4277, 4958, 6097, 6298, 6734, 8554, 12173, 12194, 17353, 22043, 22607, 24346, 32227, 34706, 40937, 44086, 45214, 64454, 81874, 116513, 158249, 225589, 233026, 286559, 316498, 451178, 573118, 815591, 1514669, 1631182, 3029338, 10602683, 21205366]

約数ペア:

[(1, 21205366), (2, 10602683), (7, 3029338), (13, 1631182), (14, 1514669), (26, 815591), (37, 573118), (47, 451178), (67, 316498), (74, 286559), (91, 233026), (94, 225589), (134, 158249), (182, 116513), (259, 81874), (329, 64454), (469, 45214), (481, 44086), (518, 40937), (611, 34706), (658, 32227), (871, 24346), (938, 22607), (962, 22043), (1222, 17353), (1739, 12194), (1742, 12173), (2479, 8554), (3149, 6734), (3367, 6298), (3478, 6097), (4277, 4958)]