205992129

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{563}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 339482880

約数和(自身を除く): 133490751

約数列:

[1, 3, 7, 19, 21, 49, 57, 131, 133, 147, 393, 399, 563, 917, 931, 1689, 2489, 2751, 2793, 3941, 6419, 7467, 10697, 11823, 17423, 19257, 27587, 32091, 52269, 73753, 74879, 82761, 121961, 221259, 224637, 365883, 516271, 524153, 1401307, 1548813, 1572459, 3613897, 4203921, 9809149, 10841691, 29427447, 68664043, 205992129]

約数ペア:

[(1, 205992129), (3, 68664043), (7, 29427447), (19, 10841691), (21, 9809149), (49, 4203921), (57, 3613897), (131, 1572459), (133, 1548813), (147, 1401307), (393, 524153), (399, 516271), (563, 365883), (917, 224637), (931, 221259), (1689, 121961), (2489, 82761), (2751, 74879), (2793, 73753), (3941, 52269), (6419, 32091), (7467, 27587), (10697, 19257), (11823, 17423)]