28091847

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 17872953

約数列:

[1, 3, 7, 21, 41, 49, 59, 79, 123, 147, 177, 237, 287, 413, 553, 861, 1239, 1659, 2009, 2419, 2891, 3239, 3871, 4661, 6027, 7257, 8673, 9717, 11613, 13983, 16933, 22673, 32627, 50799, 68019, 97881, 118531, 158711, 191101, 228389, 355593, 476133, 573303, 685167, 1337707, 4013121, 9363949, 28091847]

約数ペア:

[(1, 28091847), (3, 9363949), (7, 4013121), (21, 1337707), (41, 685167), (49, 573303), (59, 476133), (79, 355593), (123, 228389), (147, 191101), (177, 158711), (237, 118531), (287, 97881), (413, 68019), (553, 50799), (861, 32627), (1239, 22673), (1659, 16933), (2009, 13983), (2419, 11613), (2891, 9717), (3239, 8673), (3871, 7257), (4661, 6027)]