21438714

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{487}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 50595840

約数和(自身を除く): 29157126

約数列:

[1, 2, 3, 6, 11, 22, 23, 29, 33, 46, 58, 66, 69, 87, 138, 174, 253, 319, 487, 506, 638, 667, 759, 957, 974, 1334, 1461, 1518, 1914, 2001, 2922, 4002, 5357, 7337, 10714, 11201, 14123, 14674, 16071, 22011, 22402, 28246, 32142, 33603, 42369, 44022, 67206, 84738, 123211, 155353, 246422, 310706, 324829, 369633, 466059, 649658, 739266, 932118, 974487, 1948974, 3573119, 7146238, 10719357, 21438714]

約数ペア:

[(1, 21438714), (2, 10719357), (3, 7146238), (6, 3573119), (11, 1948974), (22, 974487), (23, 932118), (29, 739266), (33, 649658), (46, 466059), (58, 369633), (66, 324829), (69, 310706), (87, 246422), (138, 155353), (174, 123211), (253, 84738), (319, 67206), (487, 44022), (506, 42369), (638, 33603), (667, 32142), (759, 28246), (957, 22402), (974, 22011), (1334, 16071), (1461, 14674), (1518, 14123), (1914, 11201), (2001, 10714), (2922, 7337), (4002, 5357)]