21223029

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1\times {\mathrm{787}}^1$

素因数の和:980

約数の個数: 16

約数和(自身を含む): 28935360

約数和(自身を除く): 7712331

約数列:

[1, 3, 89, 101, 267, 303, 787, 2361, 8989, 26967, 70043, 79487, 210129, 238461, 7074343, 21223029]

約数ペア:

[(1, 21223029), (3, 7074343), (89, 238461), (101, 210129), (267, 79487), (303, 70043), (787, 26967), (2361, 8989)]