21225864

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:151

約数の個数: 128

約数和(自身を含む): 62052480

約数和(自身を除く): 40826616

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 37, 41, 44, 53, 66, 74, 82, 88, 106, 111, 123, 132, 148, 159, 164, 212, 222, 246, 264, 296, 318, 328, 407, 424, 444, 451, 492, 583, 636, 814, 888, 902, 984, 1166, 1221, 1272, 1353, 1517, 1628, 1749, 1804, 1961, 2173, 2332, 2442, 2706, 3034, 3256, 3498, 3608, 3922, 4346, 4551, 4664, 4884, 5412, 5883, 6068, 6519, 6996, 7844, 8692, 9102, 9768, 10824, 11766, 12136, 13038, 13992, 15688, 16687, 17384, 18204, 21571, 23532, 23903, 26076, 33374, 36408, 43142, 47064, 47806, 50061, 52152, 64713, 66748, 71709, 80401, 86284, 95612, 100122, 129426, 133496, 143418, 160802, 172568, 191224, 200244, 241203, 258852, 286836, 321604, 400488, 482406, 517704, 573672, 643208, 884411, 964812, 1768822, 1929624, 2653233, 3537644, 5306466, 7075288, 10612932, 21225864]

約数ペア:

[(1, 21225864), (2, 10612932), (3, 7075288), (4, 5306466), (6, 3537644), (8, 2653233), (11, 1929624), (12, 1768822), (22, 964812), (24, 884411), (33, 643208), (37, 573672), (41, 517704), (44, 482406), (53, 400488), (66, 321604), (74, 286836), (82, 258852), (88, 241203), (106, 200244), (111, 191224), (123, 172568), (132, 160802), (148, 143418), (159, 133496), (164, 129426), (212, 100122), (222, 95612), (246, 86284), (264, 80401), (296, 71709), (318, 66748), (328, 64713), (407, 52152), (424, 50061), (444, 47806), (451, 47064), (492, 43142), (583, 36408), (636, 33374), (814, 26076), (888, 23903), (902, 23532), (984, 21571), (1166, 18204), (1221, 17384), (1272, 16687), (1353, 15688), (1517, 13992), (1628, 13038), (1749, 12136), (1804, 11766), (1961, 10824), (2173, 9768), (2332, 9102), (2442, 8692), (2706, 7844), (3034, 6996), (3256, 6519), (3498, 6068), (3608, 5883), (3922, 5412), (4346, 4884), (4551, 4664)]