21183876

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{4003}}^1$

素因数の和:4030

約数の個数: 72

約数和(自身を含む): 63903840

約数和(自身を除く): 42719964

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 49, 54, 63, 84, 98, 108, 126, 147, 189, 196, 252, 294, 378, 441, 588, 756, 882, 1323, 1764, 2646, 4003, 5292, 8006, 12009, 16012, 24018, 28021, 36027, 48036, 56042, 72054, 84063, 108081, 112084, 144108, 168126, 196147, 216162, 252189, 336252, 392294, 432324, 504378, 588441, 756567, 784588, 1008756, 1176882, 1513134, 1765323, 2353764, 3026268, 3530646, 5295969, 7061292, 10591938, 21183876]

約数ペア:

[(1, 21183876), (2, 10591938), (3, 7061292), (4, 5295969), (6, 3530646), (7, 3026268), (9, 2353764), (12, 1765323), (14, 1513134), (18, 1176882), (21, 1008756), (27, 784588), (28, 756567), (36, 588441), (42, 504378), (49, 432324), (54, 392294), (63, 336252), (84, 252189), (98, 216162), (108, 196147), (126, 168126), (147, 144108), (189, 112084), (196, 108081), (252, 84063), (294, 72054), (378, 56042), (441, 48036), (588, 36027), (756, 28021), (882, 24018), (1323, 16012), (1764, 12009), (2646, 8006), (4003, 5292)]