21000953349

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{659}}^1\times {\mathrm{23143}}^1$

素因数の和:23831

約数の個数: 40

約数和(自身を含む): 33269037120

約数和(自身を除く): 12268083771

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 659, 1377, 1977, 5931, 11203, 17793, 23143, 33609, 53379, 69429, 100827, 208287, 302481, 393431, 624861, 907443, 1180293, 1874583, 3540879, 10622637, 15251237, 31867911, 45753711, 137261133, 259271029, 411783399, 777813087, 1235350197, 2333439261, 7000317783, 21000953349]

約数ペア:

[(1, 21000953349), (3, 7000317783), (9, 2333439261), (17, 1235350197), (27, 777813087), (51, 411783399), (81, 259271029), (153, 137261133), (459, 45753711), (659, 31867911), (1377, 15251237), (1977, 10622637), (5931, 3540879), (11203, 1874583), (17793, 1180293), (23143, 907443), (33609, 624861), (53379, 393431), (69429, 302481), (100827, 208287)]