21869072

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:156

約数の個数: 80

約数和(自身を含む): 48090672

約数和(自身を除く): 26221600

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 41, 53, 68, 74, 82, 106, 136, 148, 164, 212, 272, 296, 328, 424, 592, 629, 656, 697, 848, 901, 1258, 1394, 1517, 1802, 1961, 2173, 2516, 2788, 3034, 3604, 3922, 4346, 5032, 5576, 6068, 7208, 7844, 8692, 10064, 11152, 12136, 14416, 15688, 17384, 24272, 25789, 31376, 33337, 34768, 36941, 51578, 66674, 73882, 80401, 103156, 133348, 147764, 160802, 206312, 266696, 295528, 321604, 412624, 533392, 591056, 643208, 1286416, 1366817, 2733634, 5467268, 10934536, 21869072]

約数ペア:

[(1, 21869072), (2, 10934536), (4, 5467268), (8, 2733634), (16, 1366817), (17, 1286416), (34, 643208), (37, 591056), (41, 533392), (53, 412624), (68, 321604), (74, 295528), (82, 266696), (106, 206312), (136, 160802), (148, 147764), (164, 133348), (212, 103156), (272, 80401), (296, 73882), (328, 66674), (424, 51578), (592, 36941), (629, 34768), (656, 33337), (697, 31376), (848, 25789), (901, 24272), (1258, 17384), (1394, 15688), (1517, 14416), (1802, 12136), (1961, 11152), (2173, 10064), (2516, 8692), (2788, 7844), (3034, 7208), (3604, 6068), (3922, 5576), (4346, 5032)]