19908648

素因数分解:

$2^3\times 3^2\times {\mathrm{67}}^1\times {\mathrm{4127}}^1$

素因数の和:4206

約数の個数: 48

約数和(自身を含む): 54737280

約数和(自身を除く): 34828632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 67, 72, 134, 201, 268, 402, 536, 603, 804, 1206, 1608, 2412, 4127, 4824, 8254, 12381, 16508, 24762, 33016, 37143, 49524, 74286, 99048, 148572, 276509, 297144, 553018, 829527, 1106036, 1659054, 2212072, 2488581, 3318108, 4977162, 6636216, 9954324, 19908648]

約数ペア:

[(1, 19908648), (2, 9954324), (3, 6636216), (4, 4977162), (6, 3318108), (8, 2488581), (9, 2212072), (12, 1659054), (18, 1106036), (24, 829527), (36, 553018), (67, 297144), (72, 276509), (134, 148572), (201, 99048), (268, 74286), (402, 49524), (536, 37143), (603, 33016), (804, 24762), (1206, 16508), (1608, 12381), (2412, 8254), (4127, 4824)]