18771990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{21577}}^1$

素因数の和:21616

約数の個数: 32

約数和(自身を含む): 46608480

約数和(自身を除く): 27836490

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870, 21577, 43154, 64731, 107885, 129462, 215770, 323655, 625733, 647310, 1251466, 1877199, 3128665, 3754398, 6257330, 9385995, 18771990]

約数ペア:

[(1, 18771990), (2, 9385995), (3, 6257330), (5, 3754398), (6, 3128665), (10, 1877199), (15, 1251466), (29, 647310), (30, 625733), (58, 323655), (87, 215770), (145, 129462), (174, 107885), (290, 64731), (435, 43154), (870, 21577)]