20571015

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{811}}^1$

素因数の和:927

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 14507385

約数列:

[1, 3, 5, 15, 19, 57, 89, 95, 267, 285, 445, 811, 1335, 1691, 2433, 4055, 5073, 8455, 12165, 15409, 25365, 46227, 72179, 77045, 216537, 231135, 360895, 1082685, 1371401, 4114203, 6857005, 20571015]

約数ペア:

[(1, 20571015), (3, 6857005), (5, 4114203), (15, 1371401), (19, 1082685), (57, 360895), (89, 231135), (95, 216537), (267, 77045), (285, 72179), (445, 46227), (811, 25365), (1335, 15409), (1691, 12165), (2433, 8455), (4055, 5073)]