21000750165

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1\times {\mathrm{1847}}^1$

素因数の和:2131

約数の個数: 96

約数和(自身を含む): 39230231040

約数和(自身を除く): 18229480875

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 89, 153, 167, 255, 267, 445, 501, 765, 801, 835, 1335, 1503, 1513, 1847, 2505, 2839, 4005, 4539, 5541, 7515, 7565, 8517, 9235, 13617, 14195, 14863, 16623, 22695, 25551, 27705, 31399, 42585, 44589, 68085, 74315, 83115, 94197, 127755, 133767, 156995, 164383, 222945, 252671, 282591, 308449, 470985, 493149, 668835, 758013, 821915, 925347, 1263355, 1412955, 1479447, 1542245, 2274039, 2465745, 2776041, 2794511, 3790065, 4626735, 5243633, 7397235, 8383533, 11370195, 13880205, 13972555, 15730899, 25150599, 26218165, 27451961, 41917665, 47192697, 78654495, 82355883, 125752995, 137259805, 235963485, 247067649, 411779415, 466683337, 1235338245, 1400050011, 2333416685, 4200150033, 7000250055, 21000750165]

約数ペア:

[(1, 21000750165), (3, 7000250055), (5, 4200150033), (9, 2333416685), (15, 1400050011), (17, 1235338245), (45, 466683337), (51, 411779415), (85, 247067649), (89, 235963485), (153, 137259805), (167, 125752995), (255, 82355883), (267, 78654495), (445, 47192697), (501, 41917665), (765, 27451961), (801, 26218165), (835, 25150599), (1335, 15730899), (1503, 13972555), (1513, 13880205), (1847, 11370195), (2505, 8383533), (2839, 7397235), (4005, 5243633), (4539, 4626735), (5541, 3790065), (7515, 2794511), (7565, 2776041), (8517, 2465745), (9235, 2274039), (13617, 1542245), (14195, 1479447), (14863, 1412955), (16623, 1263355), (22695, 925347), (25551, 821915), (27705, 758013), (31399, 668835), (42585, 493149), (44589, 470985), (68085, 308449), (74315, 282591), (83115, 252671), (94197, 222945), (127755, 164383), (133767, 156995)]