18221508

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:281

約数の個数: 72

約数和(自身を含む): 48048000

約数和(自身を除く): 29826492

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 79, 86, 129, 149, 158, 172, 237, 258, 298, 316, 387, 447, 474, 516, 596, 711, 774, 894, 948, 1341, 1422, 1548, 1788, 2682, 2844, 3397, 5364, 6407, 6794, 10191, 11771, 12814, 13588, 19221, 20382, 23542, 25628, 30573, 35313, 38442, 40764, 47084, 57663, 61146, 70626, 76884, 105939, 115326, 122292, 141252, 211878, 230652, 423756, 506153, 1012306, 1518459, 2024612, 3036918, 4555377, 6073836, 9110754, 18221508]

約数ペア:

[(1, 18221508), (2, 9110754), (3, 6073836), (4, 4555377), (6, 3036918), (9, 2024612), (12, 1518459), (18, 1012306), (36, 506153), (43, 423756), (79, 230652), (86, 211878), (129, 141252), (149, 122292), (158, 115326), (172, 105939), (237, 76884), (258, 70626), (298, 61146), (316, 57663), (387, 47084), (447, 40764), (474, 38442), (516, 35313), (596, 30573), (711, 25628), (774, 23542), (894, 20382), (948, 19221), (1341, 13588), (1422, 12814), (1548, 11771), (1788, 10191), (2682, 6794), (2844, 6407), (3397, 5364)]