21216690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{739}}^1$

素因数の和:792

約数の個数: 96

約数和(自身を含む): 62337600

約数和(自身を除く): 41120910

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 29, 30, 33, 45, 55, 58, 66, 87, 90, 99, 110, 145, 165, 174, 198, 261, 290, 319, 330, 435, 495, 522, 638, 739, 870, 957, 990, 1305, 1478, 1595, 1914, 2217, 2610, 2871, 3190, 3695, 4434, 4785, 5742, 6651, 7390, 8129, 9570, 11085, 13302, 14355, 16258, 21431, 22170, 24387, 28710, 33255, 40645, 42862, 48774, 64293, 66510, 73161, 81290, 107155, 121935, 128586, 146322, 192879, 214310, 235741, 243870, 321465, 365805, 385758, 471482, 642930, 707223, 731610, 964395, 1178705, 1414446, 1928790, 2121669, 2357410, 3536115, 4243338, 7072230, 10608345, 21216690]

約数ペア:

[(1, 21216690), (2, 10608345), (3, 7072230), (5, 4243338), (6, 3536115), (9, 2357410), (10, 2121669), (11, 1928790), (15, 1414446), (18, 1178705), (22, 964395), (29, 731610), (30, 707223), (33, 642930), (45, 471482), (55, 385758), (58, 365805), (66, 321465), (87, 243870), (90, 235741), (99, 214310), (110, 192879), (145, 146322), (165, 128586), (174, 121935), (198, 107155), (261, 81290), (290, 73161), (319, 66510), (330, 64293), (435, 48774), (495, 42862), (522, 40645), (638, 33255), (739, 28710), (870, 24387), (957, 22170), (990, 21431), (1305, 16258), (1478, 14355), (1595, 13302), (1914, 11085), (2217, 9570), (2610, 8129), (2871, 7390), (3190, 6651), (3695, 5742), (4434, 4785)]