21718360

素因数分解:

$2^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{2371}}^1$

素因数の和:2611

約数の個数: 32

約数和(自身を含む): 49100400

約数和(自身を除く): 27382040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 229, 458, 916, 1145, 1832, 2290, 2371, 4580, 4742, 9160, 9484, 11855, 18968, 23710, 47420, 94840, 542959, 1085918, 2171836, 2714795, 4343672, 5429590, 10859180, 21718360]

約数ペア:

[(1, 21718360), (2, 10859180), (4, 5429590), (5, 4343672), (8, 2714795), (10, 2171836), (20, 1085918), (40, 542959), (229, 94840), (458, 47420), (916, 23710), (1145, 18968), (1832, 11855), (2290, 9484), (2371, 9160), (4580, 4742)]