20213530

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{557}}^1$

素因数の和:774

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 18355430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 191, 382, 557, 955, 1114, 1910, 2785, 3629, 5570, 7258, 10583, 18145, 21166, 36290, 52915, 105830, 106387, 212774, 531935, 1063870, 2021353, 4042706, 10106765, 20213530]

約数ペア:

[(1, 20213530), (2, 10106765), (5, 4042706), (10, 2021353), (19, 1063870), (38, 531935), (95, 212774), (190, 106387), (191, 105830), (382, 52915), (557, 36290), (955, 21166), (1114, 18145), (1910, 10583), (2785, 7258), (3629, 5570)]