21360216

素因数分解:

$2^3\times 3^1\times {\mathrm{83}}^1\times {\mathrm{10723}}^1$

素因数の和:10815

約数の個数: 32

約数和(自身を含む): 54048960

約数和(自身を除く): 32688744

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 83, 166, 249, 332, 498, 664, 996, 1992, 10723, 21446, 32169, 42892, 64338, 85784, 128676, 257352, 890009, 1780018, 2670027, 3560036, 5340054, 7120072, 10680108, 21360216]

約数ペア:

[(1, 21360216), (2, 10680108), (3, 7120072), (4, 5340054), (6, 3560036), (8, 2670027), (12, 1780018), (24, 890009), (83, 257352), (166, 128676), (249, 85784), (332, 64338), (498, 42892), (664, 32169), (996, 21446), (1992, 10723)]