21721142

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{18439}}^1$

素因数の和:18491

約数の個数: 16

約数和(自身を含む): 35404800

約数和(自身を除く): 13683658

約数列:

[1, 2, 19, 31, 38, 62, 589, 1178, 18439, 36878, 350341, 571609, 700682, 1143218, 10860571, 21721142]

約数ペア:

[(1, 21721142), (2, 10860571), (19, 1143218), (31, 700682), (38, 571609), (62, 350341), (589, 36878), (1178, 18439)]