16901990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2713}}^1$

素因数の和:2816

約数の個数: 32

約数和(自身を含む): 35173440

約数和(自身を除く): 18271450

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 2713, 3115, 5426, 6230, 13565, 18991, 27130, 37982, 94955, 189910, 241457, 482914, 1207285, 1690199, 2414570, 3380398, 8450995, 16901990]

約数ペア:

[(1, 16901990), (2, 8450995), (5, 3380398), (7, 2414570), (10, 1690199), (14, 1207285), (35, 482914), (70, 241457), (89, 189910), (178, 94955), (445, 37982), (623, 27130), (890, 18991), (1246, 13565), (2713, 6230), (3115, 5426)]