21751041

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{619}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 33747840

約数和(自身を除く): 11996799

約数列:

[1, 3, 13, 17, 39, 51, 53, 159, 221, 619, 663, 689, 901, 1857, 2067, 2703, 8047, 10523, 11713, 24141, 31569, 32807, 35139, 98421, 136799, 410397, 426491, 557719, 1279473, 1673157, 7250347, 21751041]

約数ペア:

[(1, 21751041), (3, 7250347), (13, 1673157), (17, 1279473), (39, 557719), (51, 426491), (53, 410397), (159, 136799), (221, 98421), (619, 35139), (663, 32807), (689, 31569), (901, 24141), (1857, 11713), (2067, 10523), (2703, 8047)]