21913838

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1\times {\mathrm{619}}^1$

素因数の和:1223

約数の個数: 16

約数和(自身を含む): 34045440

約数和(自身を除く): 12131602

約数列:

[1, 2, 31, 62, 571, 619, 1142, 1238, 17701, 19189, 35402, 38378, 353449, 706898, 10956919, 21913838]

約数ペア:

[(1, 21913838), (2, 10956919), (31, 706898), (62, 353449), (571, 38378), (619, 35402), (1142, 19189), (1238, 17701)]