2720199993

素因数分解:

$3^1\times 7^1\times {\mathrm{4091}}^1\times {\mathrm{31663}}^1$

素因数の和:35764

約数の個数: 16

約数和(自身を含む): 4146210816

約数和(自身を除く): 1426010823

約数列:

[1, 3, 7, 21, 4091, 12273, 28637, 31663, 85911, 94989, 221641, 664923, 129533333, 388599999, 906733331, 2720199993]

約数ペア:

[(1, 2720199993), (3, 906733331), (7, 388599999), (21, 129533333), (4091, 664923), (12273, 221641), (28637, 94989), (31663, 85911)]