21567728

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{14813}}^1$

素因数の和:14841

約数の個数: 40

約数和(自身を含む): 51434208

約数和(自身を除く): 29866480

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 14813, 29626, 59252, 103691, 118504, 192569, 207382, 237008, 385138, 414764, 770276, 829528, 1347983, 1540552, 1659056, 2695966, 3081104, 5391932, 10783864, 21567728]

約数ペア:

[(1, 21567728), (2, 10783864), (4, 5391932), (7, 3081104), (8, 2695966), (13, 1659056), (14, 1540552), (16, 1347983), (26, 829528), (28, 770276), (52, 414764), (56, 385138), (91, 237008), (104, 207382), (112, 192569), (182, 118504), (208, 103691), (364, 59252), (728, 29626), (1456, 14813)]