19389828

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{431}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 47609856

約数和(自身を除く): 28220028

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 163, 276, 326, 431, 489, 652, 862, 978, 1293, 1724, 1956, 2586, 3749, 5172, 7498, 9913, 11247, 14996, 19826, 22494, 29739, 39652, 44988, 59478, 70253, 118956, 140506, 210759, 281012, 421518, 843036, 1615819, 3231638, 4847457, 6463276, 9694914, 19389828]

約数ペア:

[(1, 19389828), (2, 9694914), (3, 6463276), (4, 4847457), (6, 3231638), (12, 1615819), (23, 843036), (46, 421518), (69, 281012), (92, 210759), (138, 140506), (163, 118956), (276, 70253), (326, 59478), (431, 44988), (489, 39652), (652, 29739), (862, 22494), (978, 19826), (1293, 14996), (1724, 11247), (1956, 9913), (2586, 7498), (3749, 5172)]