31478139

素因数分解:

$3^4\times 7^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:147

約数の個数: 80

約数和(自身を含む): 60403200

約数和(自身を除く): 28925061

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 81, 99, 103, 147, 189, 231, 297, 309, 343, 441, 539, 567, 693, 721, 891, 927, 1029, 1133, 1323, 1617, 2079, 2163, 2781, 3087, 3399, 3773, 3969, 4851, 5047, 6237, 6489, 7931, 8343, 9261, 10197, 11319, 14553, 15141, 19467, 23793, 27783, 30591, 33957, 35329, 43659, 45423, 55517, 58401, 71379, 91773, 101871, 105987, 136269, 166551, 214137, 305613, 317961, 388619, 408807, 499653, 642411, 953883, 1165857, 1498959, 2861649, 3497571, 4496877, 10492713, 31478139]

約数ペア:

[(1, 31478139), (3, 10492713), (7, 4496877), (9, 3497571), (11, 2861649), (21, 1498959), (27, 1165857), (33, 953883), (49, 642411), (63, 499653), (77, 408807), (81, 388619), (99, 317961), (103, 305613), (147, 214137), (189, 166551), (231, 136269), (297, 105987), (309, 101871), (343, 91773), (441, 71379), (539, 58401), (567, 55517), (693, 45423), (721, 43659), (891, 35329), (927, 33957), (1029, 30591), (1133, 27783), (1323, 23793), (1617, 19467), (2079, 15141), (2163, 14553), (2781, 11319), (3087, 10197), (3399, 9261), (3773, 8343), (3969, 7931), (4851, 6489), (5047, 6237)]