21802971

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{1531}}^1$

素因数の和:1682

約数の個数: 16

約数和(自身を含む): 30002688

約数和(自身を除く): 8199717

約数列:

[1, 3, 47, 101, 141, 303, 1531, 4593, 4747, 14241, 71957, 154631, 215871, 463893, 7267657, 21802971]

約数ペア:

[(1, 21802971), (3, 7267657), (47, 463893), (101, 215871), (141, 154631), (303, 71957), (1531, 14241), (4593, 4747)]