90809991

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{577}}^1$

素因数の和:685

約数の個数: 40

約数和(自身を含む): 142673520

約数和(自身を除く): 51863529

約数列:

[1, 3, 9, 27, 29, 67, 81, 87, 201, 261, 577, 603, 783, 1731, 1809, 1943, 2349, 5193, 5427, 5829, 15579, 16733, 17487, 38659, 46737, 50199, 52461, 115977, 150597, 157383, 347931, 451791, 1043793, 1121111, 1355373, 3131379, 3363333, 10089999, 30269997, 90809991]

約数ペア:

[(1, 90809991), (3, 30269997), (9, 10089999), (27, 3363333), (29, 3131379), (67, 1355373), (81, 1121111), (87, 1043793), (201, 451791), (261, 347931), (577, 157383), (603, 150597), (783, 115977), (1731, 52461), (1809, 50199), (1943, 46737), (2349, 38659), (5193, 17487), (5427, 16733), (5829, 15579)]