28900443

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 20451237

約数列:

[1, 3, 11, 13, 23, 29, 33, 39, 69, 87, 101, 143, 253, 299, 303, 319, 377, 429, 667, 759, 897, 957, 1111, 1131, 1313, 2001, 2323, 2929, 3289, 3333, 3939, 4147, 6969, 7337, 8671, 8787, 9867, 12441, 14443, 22011, 25553, 26013, 30199, 32219, 38077, 43329, 67367, 76659, 90597, 95381, 96657, 114231, 202101, 286143, 332189, 418847, 741037, 875771, 996567, 1256541, 2223111, 2627313, 9633481, 28900443]

約数ペア:

[(1, 28900443), (3, 9633481), (11, 2627313), (13, 2223111), (23, 1256541), (29, 996567), (33, 875771), (39, 741037), (69, 418847), (87, 332189), (101, 286143), (143, 202101), (253, 114231), (299, 96657), (303, 95381), (319, 90597), (377, 76659), (429, 67367), (667, 43329), (759, 38077), (897, 32219), (957, 30199), (1111, 26013), (1131, 25553), (1313, 22011), (2001, 14443), (2323, 12441), (2929, 9867), (3289, 8787), (3333, 8671), (3939, 7337), (4147, 6969)]