21689292

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1\times {\mathrm{167}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 51932160

約数和(自身を除く): 30242868

約数列:

[1, 2, 3, 4, 6, 12, 79, 137, 158, 167, 237, 274, 316, 334, 411, 474, 501, 548, 668, 822, 948, 1002, 1644, 2004, 10823, 13193, 21646, 22879, 26386, 32469, 39579, 43292, 45758, 52772, 64938, 68637, 79158, 91516, 129876, 137274, 158316, 274548, 1807441, 3614882, 5422323, 7229764, 10844646, 21689292]

約数ペア:

[(1, 21689292), (2, 10844646), (3, 7229764), (4, 5422323), (6, 3614882), (12, 1807441), (79, 274548), (137, 158316), (158, 137274), (167, 129876), (237, 91516), (274, 79158), (316, 68637), (334, 64938), (411, 52772), (474, 45758), (501, 43292), (548, 39579), (668, 32469), (822, 26386), (948, 22879), (1002, 21646), (1644, 13193), (2004, 10823)]