21718300

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2239}}^1$

素因数の和:2350

約数の個数: 36

約数和(自身を含む): 47635840

約数和(自身を除く): 25917540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2239, 2425, 4478, 4850, 8956, 9700, 11195, 22390, 44780, 55975, 111950, 217183, 223900, 434366, 868732, 1085915, 2171830, 4343660, 5429575, 10859150, 21718300]

約数ペア:

[(1, 21718300), (2, 10859150), (4, 5429575), (5, 4343660), (10, 2171830), (20, 1085915), (25, 868732), (50, 434366), (97, 223900), (100, 217183), (194, 111950), (388, 55975), (485, 44780), (970, 22390), (1940, 11195), (2239, 9700), (2425, 8956), (4478, 4850)]