21274656

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17047}}^1$

素因数の和:17073

約数の個数: 48

約数和(自身を含む): 60145344

約数和(自身を除く): 38870688

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 17047, 34094, 51141, 68188, 102282, 136376, 204564, 221611, 272752, 409128, 443222, 545504, 664833, 818256, 886444, 1329666, 1636512, 1772888, 2659332, 3545776, 5318664, 7091552, 10637328, 21274656]

約数ペア:

[(1, 21274656), (2, 10637328), (3, 7091552), (4, 5318664), (6, 3545776), (8, 2659332), (12, 1772888), (13, 1636512), (16, 1329666), (24, 886444), (26, 818256), (32, 664833), (39, 545504), (48, 443222), (52, 409128), (78, 272752), (96, 221611), (104, 204564), (156, 136376), (208, 102282), (312, 68188), (416, 51141), (624, 34094), (1248, 17047)]