21176090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 43817760

約数和(自身を除く): 22641670

約数列:

[1, 2, 5, 10, 13, 26, 29, 41, 58, 65, 82, 130, 137, 145, 205, 274, 290, 377, 410, 533, 685, 754, 1066, 1189, 1370, 1781, 1885, 2378, 2665, 3562, 3770, 3973, 5330, 5617, 5945, 7946, 8905, 11234, 11890, 15457, 17810, 19865, 28085, 30914, 39730, 51649, 56170, 73021, 77285, 103298, 146042, 154570, 162893, 258245, 325786, 365105, 516490, 730210, 814465, 1628930, 2117609, 4235218, 10588045, 21176090]

約数ペア:

[(1, 21176090), (2, 10588045), (5, 4235218), (10, 2117609), (13, 1628930), (26, 814465), (29, 730210), (41, 516490), (58, 365105), (65, 325786), (82, 258245), (130, 162893), (137, 154570), (145, 146042), (205, 103298), (274, 77285), (290, 73021), (377, 56170), (410, 51649), (533, 39730), (685, 30914), (754, 28085), (1066, 19865), (1189, 17810), (1370, 15457), (1781, 11890), (1885, 11234), (2378, 8905), (2665, 7946), (3562, 5945), (3770, 5617), (3973, 5330)]