21401208

素因数分解:

$2^3\times 3^2\times {\mathrm{131}}^1\times {\mathrm{2269}}^1$

素因数の和:2412

約数の個数: 48

約数和(自身を含む): 58429800

約数和(自身を除く): 37028592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 131, 262, 393, 524, 786, 1048, 1179, 1572, 2269, 2358, 3144, 4538, 4716, 6807, 9076, 9432, 13614, 18152, 20421, 27228, 40842, 54456, 81684, 163368, 297239, 594478, 891717, 1188956, 1783434, 2377912, 2675151, 3566868, 5350302, 7133736, 10700604, 21401208]

約数ペア:

[(1, 21401208), (2, 10700604), (3, 7133736), (4, 5350302), (6, 3566868), (8, 2675151), (9, 2377912), (12, 1783434), (18, 1188956), (24, 891717), (36, 594478), (72, 297239), (131, 163368), (262, 81684), (393, 54456), (524, 40842), (786, 27228), (1048, 20421), (1179, 18152), (1572, 13614), (2269, 9432), (2358, 9076), (3144, 6807), (4538, 4716)]