221478191

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{89}}^1\times {\mathrm{269}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 253983600

約数和(自身を除く): 32505409

約数列:

[1, 11, 29, 89, 269, 319, 841, 979, 2581, 2959, 7801, 9251, 23941, 28391, 74849, 85811, 226229, 263351, 694289, 823339, 2488519, 7637179, 20134381, 221478191]

約数ペア:

[(1, 221478191), (11, 20134381), (29, 7637179), (89, 2488519), (269, 823339), (319, 694289), (841, 263351), (979, 226229), (2581, 85811), (2959, 74849), (7801, 28391), (9251, 23941)]