21201936

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:816

約数の個数: 80

約数和(自身を含む): 63388800

約数和(自身を除く): 42186864

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 89, 112, 168, 178, 267, 336, 356, 534, 623, 709, 712, 1068, 1246, 1418, 1424, 1869, 2127, 2136, 2492, 2836, 3738, 4254, 4272, 4963, 4984, 5672, 7476, 8508, 9926, 9968, 11344, 14889, 14952, 17016, 19852, 29778, 29904, 34032, 39704, 59556, 63101, 79408, 119112, 126202, 189303, 238224, 252404, 378606, 441707, 504808, 757212, 883414, 1009616, 1325121, 1514424, 1766828, 2650242, 3028848, 3533656, 5300484, 7067312, 10600968, 21201936]

約数ペア:

[(1, 21201936), (2, 10600968), (3, 7067312), (4, 5300484), (6, 3533656), (7, 3028848), (8, 2650242), (12, 1766828), (14, 1514424), (16, 1325121), (21, 1009616), (24, 883414), (28, 757212), (42, 504808), (48, 441707), (56, 378606), (84, 252404), (89, 238224), (112, 189303), (168, 126202), (178, 119112), (267, 79408), (336, 63101), (356, 59556), (534, 39704), (623, 34032), (709, 29904), (712, 29778), (1068, 19852), (1246, 17016), (1418, 14952), (1424, 14889), (1869, 11344), (2127, 9968), (2136, 9926), (2492, 8508), (2836, 7476), (3738, 5672), (4254, 4984), (4272, 4963)]