20372985

素因数分解:

$3^3\times 5^1\times {\mathrm{229}}^1\times {\mathrm{659}}^1$

素因数の和:902

約数の個数: 32

約数和(自身を含む): 36432000

約数和(自身を除く): 16059015

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 229, 659, 687, 1145, 1977, 2061, 3295, 3435, 5931, 6183, 9885, 10305, 17793, 29655, 30915, 88965, 150911, 452733, 754555, 1358199, 2263665, 4074597, 6790995, 20372985]

約数ペア:

[(1, 20372985), (3, 6790995), (5, 4074597), (9, 2263665), (15, 1358199), (27, 754555), (45, 452733), (135, 150911), (229, 88965), (659, 30915), (687, 29655), (1145, 17793), (1977, 10305), (2061, 9885), (3295, 6183), (3435, 5931)]