20409844

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1193}}^1$

素因数の和:1264

約数の個数: 48

約数和(自身を含む): 44932608

約数和(自身を除く): 24522764

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 47, 52, 91, 94, 182, 188, 329, 364, 611, 658, 1193, 1222, 1316, 2386, 2444, 4277, 4772, 8351, 8554, 15509, 16702, 17108, 31018, 33404, 56071, 62036, 108563, 112142, 217126, 224284, 392497, 434252, 728923, 784994, 1457846, 1569988, 2915692, 5102461, 10204922, 20409844]

約数ペア:

[(1, 20409844), (2, 10204922), (4, 5102461), (7, 2915692), (13, 1569988), (14, 1457846), (26, 784994), (28, 728923), (47, 434252), (52, 392497), (91, 224284), (94, 217126), (182, 112142), (188, 108563), (329, 62036), (364, 56071), (611, 33404), (658, 31018), (1193, 17108), (1222, 16702), (1316, 15509), (2386, 8554), (2444, 8351), (4277, 4772)]