28357917

素因数分解:

$3^1\times 7^2\times {\mathrm{379}}^1\times {\mathrm{509}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 44186400

約数和(自身を除く): 15828483

約数列:

[1, 3, 7, 21, 49, 147, 379, 509, 1137, 1527, 2653, 3563, 7959, 10689, 18571, 24941, 55713, 74823, 192911, 578733, 1350377, 4051131, 9452639, 28357917]

約数ペア:

[(1, 28357917), (3, 9452639), (7, 4051131), (21, 1350377), (49, 578733), (147, 192911), (379, 74823), (509, 55713), (1137, 24941), (1527, 18571), (2653, 10689), (3563, 7959)]