19937316

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{827}}^1$

素因数の和:889

約数の個数: 72

約数和(自身を含む): 55502496

約数和(自身を除く): 35565180

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 41, 42, 49, 82, 84, 98, 123, 147, 164, 196, 246, 287, 294, 492, 574, 588, 827, 861, 1148, 1654, 1722, 2009, 2481, 3308, 3444, 4018, 4962, 5789, 6027, 8036, 9924, 11578, 12054, 17367, 23156, 24108, 33907, 34734, 40523, 67814, 69468, 81046, 101721, 121569, 135628, 162092, 203442, 237349, 243138, 406884, 474698, 486276, 712047, 949396, 1424094, 1661443, 2848188, 3322886, 4984329, 6645772, 9968658, 19937316]

約数ペア:

[(1, 19937316), (2, 9968658), (3, 6645772), (4, 4984329), (6, 3322886), (7, 2848188), (12, 1661443), (14, 1424094), (21, 949396), (28, 712047), (41, 486276), (42, 474698), (49, 406884), (82, 243138), (84, 237349), (98, 203442), (123, 162092), (147, 135628), (164, 121569), (196, 101721), (246, 81046), (287, 69468), (294, 67814), (492, 40523), (574, 34734), (588, 33907), (827, 24108), (861, 23156), (1148, 17367), (1654, 12054), (1722, 11578), (2009, 9924), (2481, 8036), (3308, 6027), (3444, 5789), (4018, 4962)]