21691710

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8311}}^1$

素因数の和:8353

約数の個数: 48

約数和(自身を含む): 58350240

約数和(自身を除く): 36658530

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 29, 30, 45, 58, 87, 90, 145, 174, 261, 290, 435, 522, 870, 1305, 2610, 8311, 16622, 24933, 41555, 49866, 74799, 83110, 124665, 149598, 241019, 249330, 373995, 482038, 723057, 747990, 1205095, 1446114, 2169171, 2410190, 3615285, 4338342, 7230570, 10845855, 21691710]

約数ペア:

[(1, 21691710), (2, 10845855), (3, 7230570), (5, 4338342), (6, 3615285), (9, 2410190), (10, 2169171), (15, 1446114), (18, 1205095), (29, 747990), (30, 723057), (45, 482038), (58, 373995), (87, 249330), (90, 241019), (145, 149598), (174, 124665), (261, 83110), (290, 74799), (435, 49866), (522, 41555), (870, 24933), (1305, 16622), (2610, 8311)]