21315008

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:190

約数の個数: 112

約数和(自身を含む): 52998624

約数和(自身を除く): 31683616

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 32, 34, 44, 52, 64, 68, 88, 104, 136, 137, 143, 176, 187, 208, 221, 272, 274, 286, 352, 374, 416, 442, 544, 548, 572, 704, 748, 832, 884, 1088, 1096, 1144, 1496, 1507, 1768, 1781, 2192, 2288, 2329, 2431, 2992, 3014, 3536, 3562, 4384, 4576, 4658, 4862, 5984, 6028, 7072, 7124, 8768, 9152, 9316, 9724, 11968, 12056, 14144, 14248, 18632, 19448, 19591, 24112, 25619, 28496, 30277, 37264, 38896, 39182, 48224, 51238, 56992, 60554, 74528, 77792, 78364, 96448, 102476, 113984, 121108, 149056, 155584, 156728, 204952, 242216, 313456, 333047, 409904, 484432, 626912, 666094, 819808, 968864, 1253824, 1332188, 1639616, 1937728, 2664376, 5328752, 10657504, 21315008]

約数ペア:

[(1, 21315008), (2, 10657504), (4, 5328752), (8, 2664376), (11, 1937728), (13, 1639616), (16, 1332188), (17, 1253824), (22, 968864), (26, 819808), (32, 666094), (34, 626912), (44, 484432), (52, 409904), (64, 333047), (68, 313456), (88, 242216), (104, 204952), (136, 156728), (137, 155584), (143, 149056), (176, 121108), (187, 113984), (208, 102476), (221, 96448), (272, 78364), (274, 77792), (286, 74528), (352, 60554), (374, 56992), (416, 51238), (442, 48224), (544, 39182), (548, 38896), (572, 37264), (704, 30277), (748, 28496), (832, 25619), (884, 24112), (1088, 19591), (1096, 19448), (1144, 18632), (1496, 14248), (1507, 14144), (1768, 12056), (1781, 11968), (2192, 9724), (2288, 9316), (2329, 9152), (2431, 8768), (2992, 7124), (3014, 7072), (3536, 6028), (3562, 5984), (4384, 4862), (4576, 4658)]