21772850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1331

約数の個数: 48

約数和(自身を含む): 45639936

約数和(自身を除く): 23867086

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 62, 110, 155, 275, 310, 341, 550, 682, 775, 1277, 1550, 1705, 2554, 3410, 6385, 8525, 12770, 14047, 17050, 28094, 31925, 39587, 63850, 70235, 79174, 140470, 197935, 351175, 395870, 435457, 702350, 870914, 989675, 1979350, 2177285, 4354570, 10886425, 21772850]

約数ペア:

[(1, 21772850), (2, 10886425), (5, 4354570), (10, 2177285), (11, 1979350), (22, 989675), (25, 870914), (31, 702350), (50, 435457), (55, 395870), (62, 351175), (110, 197935), (155, 140470), (275, 79174), (310, 70235), (341, 63850), (550, 39587), (682, 31925), (775, 28094), (1277, 17050), (1550, 14047), (1705, 12770), (2554, 8525), (3410, 6385)]