25865973

素因数分解:

$3^4\times 7^5\times {\mathrm{19}}^1$

素因数の和:66

約数の個数: 60

約数和(自身を含む): 47451360

約数和(自身を除く): 21585387

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 81, 133, 147, 171, 189, 343, 399, 441, 513, 567, 931, 1029, 1197, 1323, 1539, 2401, 2793, 3087, 3591, 3969, 6517, 7203, 8379, 9261, 10773, 16807, 19551, 21609, 25137, 27783, 45619, 50421, 58653, 64827, 75411, 136857, 151263, 175959, 194481, 319333, 410571, 453789, 527877, 957999, 1231713, 1361367, 2873997, 3695139, 8621991, 25865973]

約数ペア:

[(1, 25865973), (3, 8621991), (7, 3695139), (9, 2873997), (19, 1361367), (21, 1231713), (27, 957999), (49, 527877), (57, 453789), (63, 410571), (81, 319333), (133, 194481), (147, 175959), (171, 151263), (189, 136857), (343, 75411), (399, 64827), (441, 58653), (513, 50421), (567, 45619), (931, 27783), (1029, 25137), (1197, 21609), (1323, 19551), (1539, 16807), (2401, 10773), (2793, 9261), (3087, 8379), (3591, 7203), (3969, 6517)]