21115536

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:193

約数の個数: 120

約数和(自身を含む): 62629920

約数和(自身を除く): 41514384

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 19, 24, 26, 38, 39, 48, 52, 57, 76, 78, 104, 114, 137, 152, 156, 169, 208, 228, 247, 274, 304, 312, 338, 411, 456, 494, 507, 548, 624, 676, 741, 822, 912, 988, 1014, 1096, 1352, 1482, 1644, 1781, 1976, 2028, 2192, 2603, 2704, 2964, 3211, 3288, 3562, 3952, 4056, 5206, 5343, 5928, 6422, 6576, 7124, 7809, 8112, 9633, 10412, 10686, 11856, 12844, 14248, 15618, 19266, 20824, 21372, 23153, 25688, 28496, 31236, 33839, 38532, 41648, 42744, 46306, 51376, 62472, 67678, 69459, 77064, 85488, 92612, 101517, 124944, 135356, 138918, 154128, 185224, 203034, 270712, 277836, 370448, 406068, 439907, 541424, 555672, 812136, 879814, 1111344, 1319721, 1624272, 1759628, 2639442, 3519256, 5278884, 7038512, 10557768, 21115536]

約数ペア:

[(1, 21115536), (2, 10557768), (3, 7038512), (4, 5278884), (6, 3519256), (8, 2639442), (12, 1759628), (13, 1624272), (16, 1319721), (19, 1111344), (24, 879814), (26, 812136), (38, 555672), (39, 541424), (48, 439907), (52, 406068), (57, 370448), (76, 277836), (78, 270712), (104, 203034), (114, 185224), (137, 154128), (152, 138918), (156, 135356), (169, 124944), (208, 101517), (228, 92612), (247, 85488), (274, 77064), (304, 69459), (312, 67678), (338, 62472), (411, 51376), (456, 46306), (494, 42744), (507, 41648), (548, 38532), (624, 33839), (676, 31236), (741, 28496), (822, 25688), (912, 23153), (988, 21372), (1014, 20824), (1096, 19266), (1352, 15618), (1482, 14248), (1644, 12844), (1781, 11856), (1976, 10686), (2028, 10412), (2192, 9633), (2603, 8112), (2704, 7809), (2964, 7124), (3211, 6576), (3288, 6422), (3562, 5928), (3952, 5343), (4056, 5206)]