81994392

素因数分解:

$2^3\times 3^2\times {\mathrm{53}}^1\times {\mathrm{21487}}^1$

素因数の和:21552

約数の個数: 48

約数和(自身を含む): 226268640

約数和(自身を除く): 144274248

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 53, 72, 106, 159, 212, 318, 424, 477, 636, 954, 1272, 1908, 3816, 21487, 42974, 64461, 85948, 128922, 171896, 193383, 257844, 386766, 515688, 773532, 1138811, 1547064, 2277622, 3416433, 4555244, 6832866, 9110488, 10249299, 13665732, 20498598, 27331464, 40997196, 81994392]

約数ペア:

[(1, 81994392), (2, 40997196), (3, 27331464), (4, 20498598), (6, 13665732), (8, 10249299), (9, 9110488), (12, 6832866), (18, 4555244), (24, 3416433), (36, 2277622), (53, 1547064), (72, 1138811), (106, 773532), (159, 515688), (212, 386766), (318, 257844), (424, 193383), (477, 171896), (636, 128922), (954, 85948), (1272, 64461), (1908, 42974), (3816, 21487)]