21749970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3877}}^1$

素因数の和:3915

約数の個数: 64

約数和(自身を含む): 60310656

約数和(自身を除く): 38560686

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 30, 33, 34, 51, 55, 66, 85, 102, 110, 165, 170, 187, 255, 330, 374, 510, 561, 935, 1122, 1870, 2805, 3877, 5610, 7754, 11631, 19385, 23262, 38770, 42647, 58155, 65909, 85294, 116310, 127941, 131818, 197727, 213235, 255882, 329545, 395454, 426470, 639705, 659090, 724999, 988635, 1279410, 1449998, 1977270, 2174997, 3624995, 4349994, 7249990, 10874985, 21749970]

約数ペア:

[(1, 21749970), (2, 10874985), (3, 7249990), (5, 4349994), (6, 3624995), (10, 2174997), (11, 1977270), (15, 1449998), (17, 1279410), (22, 988635), (30, 724999), (33, 659090), (34, 639705), (51, 426470), (55, 395454), (66, 329545), (85, 255882), (102, 213235), (110, 197727), (165, 131818), (170, 127941), (187, 116310), (255, 85294), (330, 65909), (374, 58155), (510, 42647), (561, 38770), (935, 23262), (1122, 19385), (1870, 11631), (2805, 7754), (3877, 5610)]