21982233

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{11503}}^1$

素因数の和:11533

約数の個数: 24

約数和(自身を含む): 36720768

約数和(自身を除く): 14738535

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 11503, 34509, 80521, 149539, 241563, 448617, 563647, 1046773, 1690941, 3140319, 7327411, 21982233]

約数ペア:

[(1, 21982233), (3, 7327411), (7, 3140319), (13, 1690941), (21, 1046773), (39, 563647), (49, 448617), (91, 241563), (147, 149539), (273, 80521), (637, 34509), (1911, 11503)]