20815074

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^2$

素因数の和:192

約数の個数: 72

約数和(自身を含む): 53943552

約数和(自身を除く): 33128478

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 73, 93, 126, 146, 186, 217, 219, 279, 434, 438, 511, 558, 651, 657, 1022, 1302, 1314, 1533, 1953, 2263, 3066, 3906, 4526, 4599, 5329, 6789, 9198, 10658, 13578, 15841, 15987, 20367, 31682, 31974, 37303, 40734, 47523, 47961, 74606, 95046, 95922, 111909, 142569, 165199, 223818, 285138, 330398, 335727, 495597, 671454, 991194, 1156393, 1486791, 2312786, 2973582, 3469179, 6938358, 10407537, 20815074]

約数ペア:

[(1, 20815074), (2, 10407537), (3, 6938358), (6, 3469179), (7, 2973582), (9, 2312786), (14, 1486791), (18, 1156393), (21, 991194), (31, 671454), (42, 495597), (62, 335727), (63, 330398), (73, 285138), (93, 223818), (126, 165199), (146, 142569), (186, 111909), (217, 95922), (219, 95046), (279, 74606), (434, 47961), (438, 47523), (511, 40734), (558, 37303), (651, 31974), (657, 31682), (1022, 20367), (1302, 15987), (1314, 15841), (1533, 13578), (1953, 10658), (2263, 9198), (3066, 6789), (3906, 5329), (4526, 4599)]