21203344

素因数分解:

$2^4\times {\mathrm{491}}^1\times {\mathrm{2699}}^1$

素因数の和:3198

約数の個数: 20

約数和(自身を含む): 41180400

約数和(自身を除く): 19977056

約数列:

[1, 2, 4, 8, 16, 491, 982, 1964, 2699, 3928, 5398, 7856, 10796, 21592, 43184, 1325209, 2650418, 5300836, 10601672, 21203344]

約数ペア:

[(1, 21203344), (2, 10601672), (4, 5300836), (8, 2650418), (16, 1325209), (491, 43184), (982, 21592), (1964, 10796), (2699, 7856), (3928, 5398)]