21263148

素因数分解:

$2^2\times 3^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:149

約数の個数: 120

約数和(自身を含む): 60170880

約数和(自身を除く): 38907732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 29, 31, 36, 54, 58, 62, 73, 81, 87, 93, 108, 116, 124, 146, 162, 174, 186, 219, 261, 279, 292, 324, 348, 372, 438, 522, 558, 657, 783, 837, 876, 899, 1044, 1116, 1314, 1566, 1674, 1798, 1971, 2117, 2263, 2349, 2511, 2628, 2697, 3132, 3348, 3596, 3942, 4234, 4526, 4698, 5022, 5394, 5913, 6351, 6789, 7884, 8091, 8468, 9052, 9396, 10044, 10788, 11826, 12702, 13578, 16182, 19053, 20367, 23652, 24273, 25404, 27156, 32364, 38106, 40734, 48546, 57159, 61101, 65627, 72819, 76212, 81468, 97092, 114318, 122202, 131254, 145638, 171477, 183303, 196881, 228636, 244404, 262508, 291276, 342954, 366606, 393762, 590643, 685908, 733212, 787524, 1181286, 1771929, 2362572, 3543858, 5315787, 7087716, 10631574, 21263148]

約数ペア:

[(1, 21263148), (2, 10631574), (3, 7087716), (4, 5315787), (6, 3543858), (9, 2362572), (12, 1771929), (18, 1181286), (27, 787524), (29, 733212), (31, 685908), (36, 590643), (54, 393762), (58, 366606), (62, 342954), (73, 291276), (81, 262508), (87, 244404), (93, 228636), (108, 196881), (116, 183303), (124, 171477), (146, 145638), (162, 131254), (174, 122202), (186, 114318), (219, 97092), (261, 81468), (279, 76212), (292, 72819), (324, 65627), (348, 61101), (372, 57159), (438, 48546), (522, 40734), (558, 38106), (657, 32364), (783, 27156), (837, 25404), (876, 24273), (899, 23652), (1044, 20367), (1116, 19053), (1314, 16182), (1566, 13578), (1674, 12702), (1798, 11826), (1971, 10788), (2117, 10044), (2263, 9396), (2349, 9052), (2511, 8468), (2628, 8091), (2697, 7884), (3132, 6789), (3348, 6351), (3596, 5913), (3942, 5394), (4234, 5022), (4526, 4698)]