21119632

素因数分解:

$2^4\times {\mathrm{659}}^1\times {\mathrm{2003}}^1$

素因数の和:2670

約数の個数: 20

約数和(自身を含む): 41001840

約数和(自身を除く): 19882208

約数列:

[1, 2, 4, 8, 16, 659, 1318, 2003, 2636, 4006, 5272, 8012, 10544, 16024, 32048, 1319977, 2639954, 5279908, 10559816, 21119632]

約数ペア:

[(1, 21119632), (2, 10559816), (4, 5279908), (8, 2639954), (16, 1319977), (659, 32048), (1318, 16024), (2003, 10544), (2636, 8012), (4006, 5272)]