281658897

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:435

約数の個数: 64

約数和(自身を含む): 474163200

約数和(自身を除く): 192504303

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 117, 139, 207, 251, 299, 351, 417, 621, 753, 897, 1251, 1807, 2259, 2691, 3197, 3263, 3753, 5421, 5773, 6777, 8073, 9591, 9789, 16263, 17319, 28773, 29367, 34889, 41561, 48789, 51957, 75049, 86319, 88101, 104667, 124683, 155871, 225147, 314001, 374049, 453557, 675441, 802447, 942003, 1122147, 1360671, 2026323, 2407341, 4082013, 7222023, 10431811, 12246039, 21666069, 31295433, 93886299, 281658897]

約数ペア:

[(1, 281658897), (3, 93886299), (9, 31295433), (13, 21666069), (23, 12246039), (27, 10431811), (39, 7222023), (69, 4082013), (117, 2407341), (139, 2026323), (207, 1360671), (251, 1122147), (299, 942003), (351, 802447), (417, 675441), (621, 453557), (753, 374049), (897, 314001), (1251, 225147), (1807, 155871), (2259, 124683), (2691, 104667), (3197, 88101), (3263, 86319), (3753, 75049), (5421, 51957), (5773, 48789), (6777, 41561), (8073, 34889), (9591, 29367), (9789, 28773), (16263, 17319)]