21271230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1861}}^1$

素因数の和:2001

約数の個数: 48

約数和(自身を含む): 55770624

約数和(自身を除く): 34499394

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 127, 254, 381, 635, 762, 1143, 1270, 1861, 1905, 2286, 3722, 3810, 5583, 5715, 9305, 11166, 11430, 16749, 18610, 27915, 33498, 55830, 83745, 167490, 236347, 472694, 709041, 1181735, 1418082, 2127123, 2363470, 3545205, 4254246, 7090410, 10635615, 21271230]

約数ペア:

[(1, 21271230), (2, 10635615), (3, 7090410), (5, 4254246), (6, 3545205), (9, 2363470), (10, 2127123), (15, 1418082), (18, 1181735), (30, 709041), (45, 472694), (90, 236347), (127, 167490), (254, 83745), (381, 55830), (635, 33498), (762, 27915), (1143, 18610), (1270, 16749), (1861, 11430), (1905, 11166), (2286, 9305), (3722, 5715), (3810, 5583)]