31446387

素因数分解:

$3^5\times 7^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 58094400

約数和(自身を除く): 26648013

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 81, 133, 139, 147, 171, 189, 243, 399, 417, 441, 513, 567, 931, 973, 1197, 1251, 1323, 1539, 1701, 2641, 2793, 2919, 3591, 3753, 3969, 4617, 6811, 7923, 8379, 8757, 10773, 11259, 11907, 18487, 20433, 23769, 25137, 26271, 32319, 33777, 55461, 61299, 71307, 75411, 78813, 129409, 166383, 183897, 213921, 226233, 236439, 388227, 499149, 551691, 641763, 1164681, 1497447, 1655073, 3494043, 4492341, 10482129, 31446387]

約数ペア:

[(1, 31446387), (3, 10482129), (7, 4492341), (9, 3494043), (19, 1655073), (21, 1497447), (27, 1164681), (49, 641763), (57, 551691), (63, 499149), (81, 388227), (133, 236439), (139, 226233), (147, 213921), (171, 183897), (189, 166383), (243, 129409), (399, 78813), (417, 75411), (441, 71307), (513, 61299), (567, 55461), (931, 33777), (973, 32319), (1197, 26271), (1251, 25137), (1323, 23769), (1539, 20433), (1701, 18487), (2641, 11907), (2793, 11259), (2919, 10773), (3591, 8757), (3753, 8379), (3969, 7923), (4617, 6811)]