21661588

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6829}}^1$

素因数の和:6907

約数の個数: 24

約数和(自身を含む): 41499080

約数和(自身を除く): 19837492

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6829, 13658, 27316, 88777, 177554, 355108, 416569, 833138, 1666276, 5415397, 10830794, 21661588]

約数ペア:

[(1, 21661588), (2, 10830794), (4, 5415397), (13, 1666276), (26, 833138), (52, 416569), (61, 355108), (122, 177554), (244, 88777), (793, 27316), (1586, 13658), (3172, 6829)]