21180750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{911}}^1$

素因数の和:962

約数の個数: 64

約数和(自身を含む): 54632448

約数和(自身を除く): 33451698

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 125, 150, 155, 186, 250, 310, 375, 465, 750, 775, 911, 930, 1550, 1822, 2325, 2733, 3875, 4555, 4650, 5466, 7750, 9110, 11625, 13665, 22775, 23250, 27330, 28241, 45550, 56482, 68325, 84723, 113875, 136650, 141205, 169446, 227750, 282410, 341625, 423615, 683250, 706025, 847230, 1412050, 2118075, 3530125, 4236150, 7060250, 10590375, 21180750]

約数ペア:

[(1, 21180750), (2, 10590375), (3, 7060250), (5, 4236150), (6, 3530125), (10, 2118075), (15, 1412050), (25, 847230), (30, 706025), (31, 683250), (50, 423615), (62, 341625), (75, 282410), (93, 227750), (125, 169446), (150, 141205), (155, 136650), (186, 113875), (250, 84723), (310, 68325), (375, 56482), (465, 45550), (750, 28241), (775, 27330), (911, 23250), (930, 22775), (1550, 13665), (1822, 11625), (2325, 9110), (2733, 7750), (3875, 5466), (4555, 4650)]