221373503

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{1097}}^1$

素因数の和:1191

約数の個数: 24

約数和(自身を含む): 257696208

約数和(自身を除く): 36322705

約数列:

[1, 13, 19, 43, 247, 361, 559, 817, 1097, 4693, 10621, 14261, 15523, 20843, 47171, 201799, 270959, 396017, 613223, 896249, 5148221, 11651237, 17028731, 221373503]

約数ペア:

[(1, 221373503), (13, 17028731), (19, 11651237), (43, 5148221), (247, 896249), (361, 613223), (559, 396017), (817, 270959), (1097, 201799), (4693, 47171), (10621, 20843), (14261, 15523)]