21170163

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{241}}^1$

素因数の和:387

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 12283917

約数列:

[1, 3, 7, 21, 47, 89, 141, 241, 267, 329, 623, 723, 987, 1687, 1869, 4183, 5061, 11327, 12549, 21449, 29281, 33981, 64347, 79289, 87843, 150143, 237867, 450429, 1008103, 3024309, 7056721, 21170163]

約数ペア:

[(1, 21170163), (3, 7056721), (7, 3024309), (21, 1008103), (47, 450429), (89, 237867), (141, 150143), (241, 87843), (267, 79289), (329, 64347), (623, 33981), (723, 29281), (987, 21449), (1687, 12549), (1869, 11327), (4183, 5061)]