21612990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{1019}}^1$

素因数の和:1137

約数の個数: 64

約数和(自身を含む): 59927040

約数和(自身を除く): 38314050

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 101, 105, 202, 210, 303, 505, 606, 707, 1010, 1019, 1414, 1515, 2038, 2121, 3030, 3057, 3535, 4242, 5095, 6114, 7070, 7133, 10190, 10605, 14266, 15285, 21210, 21399, 30570, 35665, 42798, 71330, 102919, 106995, 205838, 213990, 308757, 514595, 617514, 720433, 1029190, 1440866, 1543785, 2161299, 3087570, 3602165, 4322598, 7204330, 10806495, 21612990]

約数ペア:

[(1, 21612990), (2, 10806495), (3, 7204330), (5, 4322598), (6, 3602165), (7, 3087570), (10, 2161299), (14, 1543785), (15, 1440866), (21, 1029190), (30, 720433), (35, 617514), (42, 514595), (70, 308757), (101, 213990), (105, 205838), (202, 106995), (210, 102919), (303, 71330), (505, 42798), (606, 35665), (707, 30570), (1010, 21399), (1019, 21210), (1414, 15285), (1515, 14266), (2038, 10605), (2121, 10190), (3030, 7133), (3057, 7070), (3535, 6114), (4242, 5095)]