17001981

素因数分解:

$3^5\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 27442688

約数和(自身を除く): 10440707

約数列:

[1, 3, 9, 27, 31, 37, 61, 81, 93, 111, 183, 243, 279, 333, 549, 837, 999, 1147, 1647, 1891, 2257, 2511, 2997, 3441, 4941, 5673, 6771, 7533, 8991, 10323, 14823, 17019, 20313, 30969, 51057, 60939, 69967, 92907, 153171, 182817, 209901, 278721, 459513, 548451, 629703, 1889109, 5667327, 17001981]

約数ペア:

[(1, 17001981), (3, 5667327), (9, 1889109), (27, 629703), (31, 548451), (37, 459513), (61, 278721), (81, 209901), (93, 182817), (111, 153171), (183, 92907), (243, 69967), (279, 60939), (333, 51057), (549, 30969), (837, 20313), (999, 17019), (1147, 14823), (1647, 10323), (1891, 8991), (2257, 7533), (2511, 6771), (2997, 5673), (3441, 4941)]