21017156901

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1\times {\mathrm{12487}}^1$

素因数の和:13025

約数の個数: 32

約数和(自身を含む): 30546647040

約数和(自身を除く): 9529490139

約数列:

[1, 3, 13, 39, 103, 309, 419, 1257, 1339, 4017, 5447, 12487, 16341, 37461, 43157, 129471, 162331, 486993, 561041, 1286161, 1683123, 3858483, 5232053, 15696159, 16720093, 50160279, 68016689, 204050067, 538901459, 1616704377, 7005718967, 21017156901]

約数ペア:

[(1, 21017156901), (3, 7005718967), (13, 1616704377), (39, 538901459), (103, 204050067), (309, 68016689), (419, 50160279), (1257, 16720093), (1339, 15696159), (4017, 5232053), (5447, 3858483), (12487, 1683123), (16341, 1286161), (37461, 561041), (43157, 486993), (129471, 162331)]