216223857

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{521}}^1\times {\mathrm{809}}^1$

素因数の和:1358

約数の個数: 32

約数和(自身を含む): 338256000

約数和(自身を除く): 122032143

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 521, 809, 1563, 2427, 4689, 7281, 9899, 14067, 15371, 21843, 29697, 46113, 89091, 138339, 267273, 415017, 421489, 1264467, 3793401, 8008291, 11380203, 24024873, 72074619, 216223857]

約数ペア:

[(1, 216223857), (3, 72074619), (9, 24024873), (19, 11380203), (27, 8008291), (57, 3793401), (171, 1264467), (513, 421489), (521, 415017), (809, 267273), (1563, 138339), (2427, 89091), (4689, 46113), (7281, 29697), (9899, 21843), (14067, 15371)]