221556375

素因数分解:

$3^2\times 5^3\times {\mathrm{29}}^1\times {\mathrm{6791}}^1$

素因数の和:6841

約数の個数: 48

約数和(自身を含む): 413225280

約数和(自身を除く): 191668905

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 125, 145, 225, 261, 375, 435, 725, 1125, 1305, 2175, 3625, 6525, 6791, 10875, 20373, 32625, 33955, 61119, 101865, 169775, 196939, 305595, 509325, 590817, 848875, 984695, 1527975, 1772451, 2546625, 2954085, 4923475, 7639875, 8862255, 14770425, 24617375, 44311275, 73852125, 221556375]

約数ペア:

[(1, 221556375), (3, 73852125), (5, 44311275), (9, 24617375), (15, 14770425), (25, 8862255), (29, 7639875), (45, 4923475), (75, 2954085), (87, 2546625), (125, 1772451), (145, 1527975), (225, 984695), (261, 848875), (375, 590817), (435, 509325), (725, 305595), (1125, 196939), (1305, 169775), (2175, 101865), (3625, 61119), (6525, 33955), (6791, 32625), (10875, 20373)]