19944015

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 41395200

約数和(自身を除く): 21451185

約数列:

[1, 3, 5, 7, 13, 15, 19, 21, 35, 39, 57, 65, 91, 95, 105, 133, 195, 247, 273, 285, 399, 455, 665, 741, 769, 1235, 1365, 1729, 1995, 2307, 3705, 3845, 5187, 5383, 8645, 9997, 11535, 14611, 16149, 25935, 26915, 29991, 43833, 49985, 69979, 73055, 80745, 102277, 149955, 189943, 209937, 219165, 306831, 349895, 511385, 569829, 949715, 1049685, 1329601, 1534155, 2849145, 3988803, 6648005, 19944015]

約数ペア:

[(1, 19944015), (3, 6648005), (5, 3988803), (7, 2849145), (13, 1534155), (15, 1329601), (19, 1049685), (21, 949715), (35, 569829), (39, 511385), (57, 349895), (65, 306831), (91, 219165), (95, 209937), (105, 189943), (133, 149955), (195, 102277), (247, 80745), (273, 73055), (285, 69979), (399, 49985), (455, 43833), (665, 29991), (741, 26915), (769, 25935), (1235, 16149), (1365, 14611), (1729, 11535), (1995, 9997), (2307, 8645), (3705, 5383), (3845, 5187)]