21362055

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{433}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 41997312

約数和(自身を除く): 20635257

約数列:

[1, 3, 5, 11, 13, 15, 23, 33, 39, 55, 65, 69, 115, 143, 165, 195, 253, 299, 345, 429, 433, 715, 759, 897, 1265, 1299, 1495, 2145, 2165, 3289, 3795, 4485, 4763, 5629, 6495, 9867, 9959, 14289, 16445, 16887, 23815, 28145, 29877, 49335, 49795, 61919, 71445, 84435, 109549, 129467, 149385, 185757, 309595, 328647, 388401, 547745, 647335, 928785, 1424137, 1643235, 1942005, 4272411, 7120685, 21362055]

約数ペア:

[(1, 21362055), (3, 7120685), (5, 4272411), (11, 1942005), (13, 1643235), (15, 1424137), (23, 928785), (33, 647335), (39, 547745), (55, 388401), (65, 328647), (69, 309595), (115, 185757), (143, 149385), (165, 129467), (195, 109549), (253, 84435), (299, 71445), (345, 61919), (429, 49795), (433, 49335), (715, 29877), (759, 28145), (897, 23815), (1265, 16887), (1299, 16445), (1495, 14289), (2145, 9959), (2165, 9867), (3289, 6495), (3795, 5629), (4485, 4763)]