165019921

素因数分解:

${\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{401}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 192477600

約数和(自身を除く): 27457679

約数列:

[1, 11, 19, 121, 179, 209, 401, 1969, 2299, 3401, 4411, 7619, 21659, 37411, 48521, 71779, 83809, 411521, 789569, 921899, 1363801, 8685259, 15001811, 165019921]

約数ペア:

[(1, 165019921), (11, 15001811), (19, 8685259), (121, 1363801), (179, 921899), (209, 789569), (401, 411521), (1969, 83809), (2299, 71779), (3401, 48521), (4411, 37411), (7619, 21659)]