20211484815

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^2\times {\mathrm{89}}^1\times {\mathrm{947}}^1$

素因数の和:1193

約数の個数: 72

約数和(自身を含む): 35956748880

約数和(自身を除く): 15745264065

約数列:

[1, 3, 5, 9, 15, 45, 73, 89, 219, 267, 365, 445, 657, 801, 947, 1095, 1335, 2841, 3285, 4005, 4735, 5329, 6497, 8523, 14205, 15987, 19491, 26645, 32485, 42615, 47961, 58473, 69131, 79935, 84283, 97455, 207393, 239805, 252849, 292365, 345655, 421415, 474281, 622179, 758547, 1036965, 1264245, 1422843, 2371405, 3110895, 3792735, 4268529, 5046563, 6152659, 7114215, 15139689, 18457977, 21342645, 25232815, 30763295, 45419067, 55373931, 75698445, 92289885, 227095335, 276869655, 449144107, 1347432321, 2245720535, 4042296963, 6737161605, 20211484815]

約数ペア:

[(1, 20211484815), (3, 6737161605), (5, 4042296963), (9, 2245720535), (15, 1347432321), (45, 449144107), (73, 276869655), (89, 227095335), (219, 92289885), (267, 75698445), (365, 55373931), (445, 45419067), (657, 30763295), (801, 25232815), (947, 21342645), (1095, 18457977), (1335, 15139689), (2841, 7114215), (3285, 6152659), (4005, 5046563), (4735, 4268529), (5329, 3792735), (6497, 3110895), (8523, 2371405), (14205, 1422843), (15987, 1264245), (19491, 1036965), (26645, 758547), (32485, 622179), (42615, 474281), (47961, 421415), (58473, 345655), (69131, 292365), (79935, 252849), (84283, 239805), (97455, 207393)]