21460712

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{719}}^1$

素因数の和:786

約数の個数: 64

約数和(自身を含む): 50803200

約数和(自身を除く): 29342488

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 41, 52, 56, 82, 91, 104, 164, 182, 287, 328, 364, 533, 574, 719, 728, 1066, 1148, 1438, 2132, 2296, 2876, 3731, 4264, 5033, 5752, 7462, 9347, 10066, 14924, 18694, 20132, 29479, 29848, 37388, 40264, 58958, 65429, 74776, 117916, 130858, 206353, 235832, 261716, 383227, 412706, 523432, 766454, 825412, 1532908, 1650824, 2682589, 3065816, 5365178, 10730356, 21460712]

約数ペア:

[(1, 21460712), (2, 10730356), (4, 5365178), (7, 3065816), (8, 2682589), (13, 1650824), (14, 1532908), (26, 825412), (28, 766454), (41, 523432), (52, 412706), (56, 383227), (82, 261716), (91, 235832), (104, 206353), (164, 130858), (182, 117916), (287, 74776), (328, 65429), (364, 58958), (533, 40264), (574, 37388), (719, 29848), (728, 29479), (1066, 20132), (1148, 18694), (1438, 14924), (2132, 10066), (2296, 9347), (2876, 7462), (3731, 5752), (4264, 5033)]