221345487

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:909

約数の個数: 64

約数和(自身を含む): 382464000

約数和(自身を除く): 161118513

約数列:

[1, 3, 9, 11, 27, 29, 31, 33, 87, 93, 99, 261, 279, 297, 319, 341, 783, 829, 837, 899, 957, 1023, 2487, 2697, 2871, 3069, 7461, 8091, 8613, 9119, 9207, 9889, 22383, 24041, 24273, 25699, 27357, 29667, 72123, 77097, 82071, 89001, 216369, 231291, 246213, 264451, 267003, 282689, 649107, 693873, 745271, 793353, 848067, 2235813, 2380059, 2544201, 6707439, 7140177, 7632603, 8197981, 20122317, 24593943, 73781829, 221345487]

約数ペア:

[(1, 221345487), (3, 73781829), (9, 24593943), (11, 20122317), (27, 8197981), (29, 7632603), (31, 7140177), (33, 6707439), (87, 2544201), (93, 2380059), (99, 2235813), (261, 848067), (279, 793353), (297, 745271), (319, 693873), (341, 649107), (783, 282689), (829, 267003), (837, 264451), (899, 246213), (957, 231291), (1023, 216369), (2487, 89001), (2697, 82071), (2871, 77097), (3069, 72123), (7461, 29667), (8091, 27357), (8613, 25699), (9119, 24273), (9207, 24041), (9889, 22383)]