21839500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1409}}^1$

素因数の和:1459

約数の個数: 48

約数和(自身を含む): 49271040

約数和(自身を除く): 27431540

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 1409, 1550, 2818, 3100, 3875, 5636, 7045, 7750, 14090, 15500, 28180, 35225, 43679, 70450, 87358, 140900, 174716, 176125, 218395, 352250, 436790, 704500, 873580, 1091975, 2183950, 4367900, 5459875, 10919750, 21839500]

約数ペア:

[(1, 21839500), (2, 10919750), (4, 5459875), (5, 4367900), (10, 2183950), (20, 1091975), (25, 873580), (31, 704500), (50, 436790), (62, 352250), (100, 218395), (124, 176125), (125, 174716), (155, 140900), (250, 87358), (310, 70450), (500, 43679), (620, 35225), (775, 28180), (1409, 15500), (1550, 14090), (2818, 7750), (3100, 7045), (3875, 5636)]