20870262

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2269}}^1$

素因数の和:2357

約数の個数: 48

約数和(自身を含む): 52409760

約数和(自身を除く): 31539498

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 73, 126, 146, 219, 438, 511, 657, 1022, 1314, 1533, 2269, 3066, 4538, 4599, 6807, 9198, 13614, 15883, 20421, 31766, 40842, 47649, 95298, 142947, 165637, 285894, 331274, 496911, 993822, 1159459, 1490733, 2318918, 2981466, 3478377, 6956754, 10435131, 20870262]

約数ペア:

[(1, 20870262), (2, 10435131), (3, 6956754), (6, 3478377), (7, 2981466), (9, 2318918), (14, 1490733), (18, 1159459), (21, 993822), (42, 496911), (63, 331274), (73, 285894), (126, 165637), (146, 142947), (219, 95298), (438, 47649), (511, 40842), (657, 31766), (1022, 20421), (1314, 15883), (1533, 13614), (2269, 9198), (3066, 6807), (4538, 4599)]