42080409

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 73412352

約数和(自身を除く): 31331943

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 113, 161, 207, 257, 339, 483, 771, 791, 1017, 1449, 1799, 2313, 2373, 2599, 5397, 5911, 7119, 7797, 16191, 17733, 18193, 23391, 29041, 41377, 53199, 54579, 87123, 124131, 163737, 203287, 261369, 372393, 609861, 667943, 1829583, 2003829, 4675601, 6011487, 14026803, 42080409]

約数ペア:

[(1, 42080409), (3, 14026803), (7, 6011487), (9, 4675601), (21, 2003829), (23, 1829583), (63, 667943), (69, 609861), (113, 372393), (161, 261369), (207, 203287), (257, 163737), (339, 124131), (483, 87123), (771, 54579), (791, 53199), (1017, 41377), (1449, 29041), (1799, 23391), (2313, 18193), (2373, 17733), (2599, 16191), (5397, 7797), (5911, 7119)]