21044205

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{571}}^1$

素因数の和:608

約数の個数: 80

約数和(自身を含む): 46510464

約数和(自身を除く): 25466259

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 27, 35, 39, 45, 63, 65, 81, 91, 105, 117, 135, 189, 195, 273, 315, 351, 405, 455, 567, 571, 585, 819, 945, 1053, 1365, 1713, 1755, 2457, 2835, 2855, 3997, 4095, 5139, 5265, 7371, 7423, 8565, 11991, 12285, 15417, 19985, 22269, 25695, 35973, 36855, 37115, 46251, 51961, 59955, 66807, 77085, 107919, 111345, 155883, 179865, 200421, 231255, 259805, 323757, 334035, 467649, 539595, 601263, 779415, 1002105, 1402947, 1618785, 2338245, 3006315, 4208841, 7014735, 21044205]

約数ペア:

[(1, 21044205), (3, 7014735), (5, 4208841), (7, 3006315), (9, 2338245), (13, 1618785), (15, 1402947), (21, 1002105), (27, 779415), (35, 601263), (39, 539595), (45, 467649), (63, 334035), (65, 323757), (81, 259805), (91, 231255), (105, 200421), (117, 179865), (135, 155883), (189, 111345), (195, 107919), (273, 77085), (315, 66807), (351, 59955), (405, 51961), (455, 46251), (567, 37115), (571, 36855), (585, 35973), (819, 25695), (945, 22269), (1053, 19985), (1365, 15417), (1713, 12285), (1755, 11991), (2457, 8565), (2835, 7423), (2855, 7371), (3997, 5265), (4095, 5139)]