21396345

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{487}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 35838720

約数和(自身を除く): 14442375

約数列:

[1, 3, 5, 15, 29, 87, 101, 145, 303, 435, 487, 505, 1461, 1515, 2435, 2929, 7305, 8787, 14123, 14645, 42369, 43935, 49187, 70615, 147561, 211845, 245935, 737805, 1426423, 4279269, 7132115, 21396345]

約数ペア:

[(1, 21396345), (3, 7132115), (5, 4279269), (15, 1426423), (29, 737805), (87, 245935), (101, 211845), (145, 147561), (303, 70615), (435, 49187), (487, 43935), (505, 42369), (1461, 14645), (1515, 14123), (2435, 8787), (2929, 7305)]