21053676

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{953}}^1$

素因数の和:1230

約数の個数: 48

約数和(自身を含む): 56415744

約数和(自身を除く): 35362068

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 263, 526, 789, 953, 1052, 1578, 1841, 1906, 2859, 3156, 3682, 3812, 5523, 5718, 6671, 7364, 11046, 11436, 13342, 20013, 22092, 26684, 40026, 80052, 250639, 501278, 751917, 1002556, 1503834, 1754473, 3007668, 3508946, 5263419, 7017892, 10526838, 21053676]

約数ペア:

[(1, 21053676), (2, 10526838), (3, 7017892), (4, 5263419), (6, 3508946), (7, 3007668), (12, 1754473), (14, 1503834), (21, 1002556), (28, 751917), (42, 501278), (84, 250639), (263, 80052), (526, 40026), (789, 26684), (953, 22092), (1052, 20013), (1578, 13342), (1841, 11436), (1906, 11046), (2859, 7364), (3156, 6671), (3682, 5718), (3812, 5523)]