20199821265

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1607}}^1\times {\mathrm{21487}}^1$

素因数の和:23118

約数の個数: 48

約数和(自身を含む): 37731552768

約数和(自身を除く): 17531731503

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 1607, 4821, 8035, 14463, 20891, 21487, 24105, 62673, 64461, 72315, 104455, 107435, 188019, 193383, 279331, 313365, 322305, 837993, 940095, 966915, 1396655, 2513979, 4189965, 12569895, 34529609, 103588827, 172648045, 310766481, 448884917, 517944135, 1346654751, 1553832405, 2244424585, 4039964253, 6733273755, 20199821265]

約数ペア:

[(1, 20199821265), (3, 6733273755), (5, 4039964253), (9, 2244424585), (13, 1553832405), (15, 1346654751), (39, 517944135), (45, 448884917), (65, 310766481), (117, 172648045), (195, 103588827), (585, 34529609), (1607, 12569895), (4821, 4189965), (8035, 2513979), (14463, 1396655), (20891, 966915), (21487, 940095), (24105, 837993), (62673, 322305), (64461, 313365), (72315, 279331), (104455, 193383), (107435, 188019)]