21004610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{743}}^1$

素因数の和:1018

約数の個数: 32

約数和(自身を含む): 41461632

約数和(自身を除く): 20457022

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 257, 514, 743, 1285, 1486, 2570, 2827, 3715, 5654, 7430, 8173, 14135, 16346, 28270, 40865, 81730, 190951, 381902, 954755, 1909510, 2100461, 4200922, 10502305, 21004610]

約数ペア:

[(1, 21004610), (2, 10502305), (5, 4200922), (10, 2100461), (11, 1909510), (22, 954755), (55, 381902), (110, 190951), (257, 81730), (514, 40865), (743, 28270), (1285, 16346), (1486, 14135), (2570, 8173), (2827, 7430), (3715, 5654)]