21274402

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{4243}}^1$

素因数の和:4377

約数の個数: 16

約数和(自身を含む): 33612480

約数和(自身を除く): 12338078

約数列:

[1, 2, 23, 46, 109, 218, 2507, 4243, 5014, 8486, 97589, 195178, 462487, 924974, 10637201, 21274402]

約数ペア:

[(1, 21274402), (2, 10637201), (23, 924974), (46, 462487), (109, 195178), (218, 97589), (2507, 8486), (4243, 5014)]