21977450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1289}}^1$

素因数の和:1343

約数の個数: 48

約数和(自身を含む): 46068480

約数和(自身を除く): 24091030

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 50, 55, 62, 110, 155, 275, 310, 341, 550, 682, 775, 1289, 1550, 1705, 2578, 3410, 6445, 8525, 12890, 14179, 17050, 28358, 32225, 39959, 64450, 70895, 79918, 141790, 199795, 354475, 399590, 439549, 708950, 879098, 998975, 1997950, 2197745, 4395490, 10988725, 21977450]

約数ペア:

[(1, 21977450), (2, 10988725), (5, 4395490), (10, 2197745), (11, 1997950), (22, 998975), (25, 879098), (31, 708950), (50, 439549), (55, 399590), (62, 354475), (110, 199795), (155, 141790), (275, 79918), (310, 70895), (341, 64450), (550, 39959), (682, 32225), (775, 28358), (1289, 17050), (1550, 14179), (1705, 12890), (2578, 8525), (3410, 6445)]