21819266

素因数分解:

$2^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6521}}^1$

素因数の和:6769

約数の個数: 16

約数和(自身を含む): 37566720

約数和(自身を除く): 15747454

約数列:

[1, 2, 7, 14, 239, 478, 1673, 3346, 6521, 13042, 45647, 91294, 1558519, 3117038, 10909633, 21819266]

約数ペア:

[(1, 21819266), (2, 10909633), (7, 3117038), (14, 1558519), (239, 91294), (478, 45647), (1673, 13042), (3346, 6521)]