21274995

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3823}}^1$

素因数の和:3891

約数の個数: 32

約数和(自身を含む): 39647232

約数和(自身を除く): 18372237

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855, 3823, 5565, 11469, 19115, 26761, 57345, 80283, 133805, 202619, 401415, 607857, 1013095, 1418333, 3039285, 4254999, 7091665, 21274995]

約数ペア:

[(1, 21274995), (3, 7091665), (5, 4254999), (7, 3039285), (15, 1418333), (21, 1013095), (35, 607857), (53, 401415), (105, 202619), (159, 133805), (265, 80283), (371, 57345), (795, 26761), (1113, 19115), (1855, 11469), (3823, 5565)]