21729645

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{683}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 43535232

約数和(自身を除く): 21805587

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 101, 105, 303, 315, 505, 683, 707, 909, 1515, 2049, 2121, 3415, 3535, 4545, 4781, 6147, 6363, 10245, 10605, 14343, 23905, 30735, 31815, 43029, 68983, 71715, 206949, 215145, 344915, 482881, 620847, 1034745, 1448643, 2414405, 3104235, 4345929, 7243215, 21729645]

約数ペア:

[(1, 21729645), (3, 7243215), (5, 4345929), (7, 3104235), (9, 2414405), (15, 1448643), (21, 1034745), (35, 620847), (45, 482881), (63, 344915), (101, 215145), (105, 206949), (303, 71715), (315, 68983), (505, 43029), (683, 31815), (707, 30735), (909, 23905), (1515, 14343), (2049, 10605), (2121, 10245), (3415, 6363), (3535, 6147), (4545, 4781)]