21189670

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{509}}^1$

素因数の和:720

約数の個数: 32

約数和(自身を含む): 40098240

約数和(自身を除く): 18908570

約数列:

[1, 2, 5, 10, 23, 46, 115, 181, 230, 362, 509, 905, 1018, 1810, 2545, 4163, 5090, 8326, 11707, 20815, 23414, 41630, 58535, 92129, 117070, 184258, 460645, 921290, 2118967, 4237934, 10594835, 21189670]

約数ペア:

[(1, 21189670), (2, 10594835), (5, 4237934), (10, 2118967), (23, 921290), (46, 460645), (115, 184258), (181, 117070), (230, 92129), (362, 58535), (509, 41630), (905, 23414), (1018, 20815), (1810, 11707), (2545, 8326), (4163, 5090)]