421561504

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20681}}^1$

素因数の和:20718

約数の個数: 72

約数和(自身を含む): 1039766868

約数和(自身を除く): 618205364

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 637, 728, 784, 1274, 1456, 1568, 2548, 2912, 5096, 10192, 20384, 20681, 41362, 82724, 144767, 165448, 268853, 289534, 330896, 537706, 579068, 661792, 1013369, 1075412, 1158136, 1881971, 2026738, 2150824, 2316272, 3763942, 4053476, 4301648, 4632544, 7527884, 8106952, 8603296, 13173797, 15055768, 16213904, 26347594, 30111536, 32427808, 52695188, 60223072, 105390376, 210780752, 421561504]

約数ペア:

[(1, 421561504), (2, 210780752), (4, 105390376), (7, 60223072), (8, 52695188), (13, 32427808), (14, 30111536), (16, 26347594), (26, 16213904), (28, 15055768), (32, 13173797), (49, 8603296), (52, 8106952), (56, 7527884), (91, 4632544), (98, 4301648), (104, 4053476), (112, 3763942), (182, 2316272), (196, 2150824), (208, 2026738), (224, 1881971), (364, 1158136), (392, 1075412), (416, 1013369), (637, 661792), (728, 579068), (784, 537706), (1274, 330896), (1456, 289534), (1568, 268853), (2548, 165448), (2912, 144767), (5096, 82724), (10192, 41362), (20384, 20681)]