21897932

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{919}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 46986240

約数和(自身を除く): 25088308

約数列:

[1, 2, 4, 7, 14, 23, 28, 37, 46, 74, 92, 148, 161, 259, 322, 518, 644, 851, 919, 1036, 1702, 1838, 3404, 3676, 5957, 6433, 11914, 12866, 21137, 23828, 25732, 34003, 42274, 68006, 84548, 136012, 147959, 238021, 295918, 476042, 591836, 782069, 952084, 1564138, 3128276, 5474483, 10948966, 21897932]

約数ペア:

[(1, 21897932), (2, 10948966), (4, 5474483), (7, 3128276), (14, 1564138), (23, 952084), (28, 782069), (37, 591836), (46, 476042), (74, 295918), (92, 238021), (148, 147959), (161, 136012), (259, 84548), (322, 68006), (518, 42274), (644, 34003), (851, 25732), (919, 23828), (1036, 21137), (1702, 12866), (1838, 11914), (3404, 6433), (3676, 5957)]