21729015

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6271}}^1$

素因数の和:6300

約数の個数: 48

約数和(自身を含む): 46964736

約数和(自身を除く): 25235721

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 6271, 18813, 31355, 43897, 56439, 68981, 94065, 131691, 206943, 219485, 282195, 344905, 395073, 482867, 620829, 658455, 1034715, 1448601, 1975365, 2414335, 3104145, 4345803, 7243005, 21729015]

約数ペア:

[(1, 21729015), (3, 7243005), (5, 4345803), (7, 3104145), (9, 2414335), (11, 1975365), (15, 1448601), (21, 1034715), (33, 658455), (35, 620829), (45, 482867), (55, 395073), (63, 344905), (77, 282195), (99, 219485), (105, 206943), (165, 131691), (231, 94065), (315, 68981), (385, 56439), (495, 43897), (693, 31355), (1155, 18813), (3465, 6271)]