19994640806

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{449}}^1\times {\mathrm{11083}}^1$

素因数の和:11589

約数の個数: 48

約数和(自身を含む): 35822379600

約数和(自身を除く): 15827738794

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 449, 574, 898, 2009, 3143, 4018, 6286, 11083, 18409, 22001, 22166, 36818, 44002, 77581, 128863, 155162, 257726, 454403, 543067, 902041, 908806, 1086134, 1804082, 3180821, 4976267, 6361642, 9952534, 22265747, 34833869, 44531494, 69667738, 204026947, 243837083, 408053894, 487674166, 1428188629, 2856377258, 9997320403, 19994640806]

約数ペア:

[(1, 19994640806), (2, 9997320403), (7, 2856377258), (14, 1428188629), (41, 487674166), (49, 408053894), (82, 243837083), (98, 204026947), (287, 69667738), (449, 44531494), (574, 34833869), (898, 22265747), (2009, 9952534), (3143, 6361642), (4018, 4976267), (6286, 3180821), (11083, 1804082), (18409, 1086134), (22001, 908806), (22166, 902041), (36818, 543067), (44002, 454403), (77581, 257726), (128863, 155162)]