21401538

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{209819}}^1$

素因数の和:209841

約数の個数: 16

約数和(自身を含む): 45321120

約数和(自身を除く): 23919582

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 209819, 419638, 629457, 1258914, 3566923, 7133846, 10700769, 21401538]

約数ペア:

[(1, 21401538), (2, 10700769), (3, 7133846), (6, 3566923), (17, 1258914), (34, 629457), (51, 419638), (102, 209819)]