21997109456

素因数分解:

$2^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{6335573}}^1$

素因数の和:6335619

約数の個数: 40

約数和(自身を含む): 50279115264

約数和(自身を除く): 28282005808

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 56, 62, 112, 124, 217, 248, 434, 496, 868, 1736, 3472, 6335573, 12671146, 25342292, 44349011, 50684584, 88698022, 101369168, 177396044, 196402763, 354792088, 392805526, 709584176, 785611052, 1374819341, 1571222104, 2749638682, 3142444208, 5499277364, 10998554728, 21997109456]

約数ペア:

[(1, 21997109456), (2, 10998554728), (4, 5499277364), (7, 3142444208), (8, 2749638682), (14, 1571222104), (16, 1374819341), (28, 785611052), (31, 709584176), (56, 392805526), (62, 354792088), (112, 196402763), (124, 177396044), (217, 101369168), (248, 88698022), (434, 50684584), (496, 44349011), (868, 25342292), (1736, 12671146), (3472, 6335573)]