20451951

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2609}}^1$

素因数の和:2695

約数の個数: 24

約数和(自身を含む): 32301360

約数和(自身を除く): 11849409

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2609, 2613, 7827, 7839, 23481, 33917, 101751, 174803, 305253, 524409, 1573227, 2272439, 6817317, 20451951]

約数ペア:

[(1, 20451951), (3, 6817317), (9, 2272439), (13, 1573227), (39, 524409), (67, 305253), (117, 174803), (201, 101751), (603, 33917), (871, 23481), (2609, 7839), (2613, 7827)]