21584178

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 40623822

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 29, 33, 42, 54, 58, 63, 66, 77, 87, 99, 126, 154, 174, 179, 189, 198, 203, 231, 261, 297, 319, 358, 378, 406, 462, 522, 537, 594, 609, 638, 693, 783, 957, 1074, 1218, 1253, 1386, 1566, 1611, 1827, 1914, 1969, 2079, 2233, 2506, 2871, 3222, 3654, 3759, 3938, 4158, 4466, 4833, 5191, 5481, 5742, 5907, 6699, 7518, 8613, 9666, 10382, 10962, 11277, 11814, 13398, 13783, 15573, 17226, 17721, 20097, 22554, 27566, 31146, 33831, 35442, 36337, 40194, 41349, 46719, 53163, 57101, 60291, 67662, 72674, 82698, 93438, 106326, 109011, 114202, 120582, 124047, 140157, 171303, 218022, 248094, 280314, 327033, 342606, 372141, 399707, 513909, 654066, 744282, 799414, 981099, 1027818, 1199121, 1541727, 1962198, 2398242, 3083454, 3597363, 7194726, 10792089, 21584178]

約数ペア:

[(1, 21584178), (2, 10792089), (3, 7194726), (6, 3597363), (7, 3083454), (9, 2398242), (11, 1962198), (14, 1541727), (18, 1199121), (21, 1027818), (22, 981099), (27, 799414), (29, 744282), (33, 654066), (42, 513909), (54, 399707), (58, 372141), (63, 342606), (66, 327033), (77, 280314), (87, 248094), (99, 218022), (126, 171303), (154, 140157), (174, 124047), (179, 120582), (189, 114202), (198, 109011), (203, 106326), (231, 93438), (261, 82698), (297, 72674), (319, 67662), (358, 60291), (378, 57101), (406, 53163), (462, 46719), (522, 41349), (537, 40194), (594, 36337), (609, 35442), (638, 33831), (693, 31146), (783, 27566), (957, 22554), (1074, 20097), (1218, 17721), (1253, 17226), (1386, 15573), (1566, 13783), (1611, 13398), (1827, 11814), (1914, 11277), (1969, 10962), (2079, 10382), (2233, 9666), (2506, 8613), (2871, 7518), (3222, 6699), (3654, 5907), (3759, 5742), (3938, 5481), (4158, 5191), (4466, 4833)]