291220293

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2647}}^1$

素因数の和:2714

約数の個数: 48

約数和(自身を含む): 496214016

約数和(自身を除く): 204993723

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 169, 217, 273, 403, 507, 651, 1183, 1209, 2647, 2821, 3549, 5239, 7941, 8463, 15717, 18529, 34411, 36673, 55587, 82057, 103233, 110019, 240877, 246171, 447343, 574399, 722631, 1066741, 1342029, 1723197, 3131401, 3200223, 7467187, 9394203, 13867633, 22401561, 41602899, 97073431, 291220293]

約数ペア:

[(1, 291220293), (3, 97073431), (7, 41602899), (13, 22401561), (21, 13867633), (31, 9394203), (39, 7467187), (91, 3200223), (93, 3131401), (169, 1723197), (217, 1342029), (273, 1066741), (403, 722631), (507, 574399), (651, 447343), (1183, 246171), (1209, 240877), (2647, 110019), (2821, 103233), (3549, 82057), (5239, 55587), (7941, 36673), (8463, 34411), (15717, 18529)]