215865741

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1109}}^1$

素因数の和:1186

約数の個数: 64

約数和(自身を含む): 381911040

約数和(自身を除く): 166045299

約数列:

[1, 3, 7, 13, 21, 23, 31, 39, 69, 91, 93, 161, 217, 273, 299, 403, 483, 651, 713, 897, 1109, 1209, 2093, 2139, 2821, 3327, 4991, 6279, 7763, 8463, 9269, 14417, 14973, 23289, 25507, 27807, 34379, 43251, 64883, 76521, 100919, 103137, 178549, 194649, 240653, 302757, 331591, 446927, 535647, 721959, 790717, 994773, 1340781, 2321137, 2372151, 3128489, 5535019, 6963411, 9385467, 10279321, 16605057, 30837963, 71955247, 215865741]

約数ペア:

[(1, 215865741), (3, 71955247), (7, 30837963), (13, 16605057), (21, 10279321), (23, 9385467), (31, 6963411), (39, 5535019), (69, 3128489), (91, 2372151), (93, 2321137), (161, 1340781), (217, 994773), (273, 790717), (299, 721959), (403, 535647), (483, 446927), (651, 331591), (713, 302757), (897, 240653), (1109, 194649), (1209, 178549), (2093, 103137), (2139, 100919), (2821, 76521), (3327, 64883), (4991, 43251), (6279, 34379), (7763, 27807), (8463, 25507), (9269, 23289), (14417, 14973)]