21785672

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{34471}}^1$

素因数の和:34556

約数の個数: 16

約数和(自身を含む): 41366400

約数和(自身を除く): 19580728

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 34471, 68942, 137884, 275768, 2723209, 5446418, 10892836, 21785672]

約数ペア:

[(1, 21785672), (2, 10892836), (4, 5446418), (8, 2723209), (79, 275768), (158, 137884), (316, 68942), (632, 34471)]