21277354

素因数分解:

$2^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{2371}}^1$

素因数の和:3021

約数の個数: 16

約数和(自身を含む): 36547776

約数和(自身を除く): 15270422

約数列:

[1, 2, 7, 14, 641, 1282, 2371, 4487, 4742, 8974, 16597, 33194, 1519811, 3039622, 10638677, 21277354]

約数ペア:

[(1, 21277354), (2, 10638677), (7, 3039622), (14, 1519811), (641, 33194), (1282, 16597), (2371, 8974), (4487, 4742)]