30987873

素因数分解:

$3^3\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1291}}^1$

素因数の和:1434

約数の個数: 32

約数和(自身を含む): 52920320

約数和(自身を除く): 21932447

約数列:

[1, 3, 7, 9, 21, 27, 63, 127, 189, 381, 889, 1143, 1291, 2667, 3429, 3873, 8001, 9037, 11619, 24003, 27111, 34857, 81333, 163957, 243999, 491871, 1147699, 1475613, 3443097, 4426839, 10329291, 30987873]

約数ペア:

[(1, 30987873), (3, 10329291), (7, 4426839), (9, 3443097), (21, 1475613), (27, 1147699), (63, 491871), (127, 243999), (189, 163957), (381, 81333), (889, 34857), (1143, 27111), (1291, 24003), (2667, 11619), (3429, 9037), (3873, 8001)]