21745272

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1109}}^1$

素因数の和:1180

約数の個数: 64

約数和(自身を含む): 58608000

約数和(自身を除く): 36862728

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 43, 57, 76, 86, 114, 129, 152, 172, 228, 258, 344, 456, 516, 817, 1032, 1109, 1634, 2218, 2451, 3268, 3327, 4436, 4902, 6536, 6654, 8872, 9804, 13308, 19608, 21071, 26616, 42142, 47687, 63213, 84284, 95374, 126426, 143061, 168568, 190748, 252852, 286122, 381496, 505704, 572244, 906053, 1144488, 1812106, 2718159, 3624212, 5436318, 7248424, 10872636, 21745272]

約数ペア:

[(1, 21745272), (2, 10872636), (3, 7248424), (4, 5436318), (6, 3624212), (8, 2718159), (12, 1812106), (19, 1144488), (24, 906053), (38, 572244), (43, 505704), (57, 381496), (76, 286122), (86, 252852), (114, 190748), (129, 168568), (152, 143061), (172, 126426), (228, 95374), (258, 84284), (344, 63213), (456, 47687), (516, 42142), (817, 26616), (1032, 21071), (1109, 19608), (1634, 13308), (2218, 9804), (2451, 8872), (3268, 6654), (3327, 6536), (4436, 4902)]