21697316

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4021}}^1$

素因数の和:4115

約数の個数: 24

約数和(自身を含む): 40541760

約数和(自身を除く): 18844444

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 4021, 5396, 8042, 16084, 76399, 152798, 285491, 305596, 570982, 1141964, 5424329, 10848658, 21697316]

約数ペア:

[(1, 21697316), (2, 10848658), (4, 5424329), (19, 1141964), (38, 570982), (71, 305596), (76, 285491), (142, 152798), (284, 76399), (1349, 16084), (2698, 8042), (4021, 5396)]