21248052

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{571}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 56888832

約数和(自身を除く): 35640780

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 443, 571, 886, 1142, 1329, 1713, 1772, 2284, 2658, 3101, 3426, 3997, 5316, 6202, 6852, 7994, 9303, 11991, 12404, 15988, 18606, 23982, 37212, 47964, 252953, 505906, 758859, 1011812, 1517718, 1770671, 3035436, 3541342, 5312013, 7082684, 10624026, 21248052]

約数ペア:

[(1, 21248052), (2, 10624026), (3, 7082684), (4, 5312013), (6, 3541342), (7, 3035436), (12, 1770671), (14, 1517718), (21, 1011812), (28, 758859), (42, 505906), (84, 252953), (443, 47964), (571, 37212), (886, 23982), (1142, 18606), (1329, 15988), (1713, 12404), (1772, 11991), (2284, 9303), (2658, 7994), (3101, 6852), (3426, 6202), (3997, 5316)]