20736675

素因数分解:

$3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1041

約数の個数: 48

約数和(自身を含む): 39362560

約数和(自身を除く): 18625885

約数列:

[1, 3, 5, 9, 15, 25, 27, 31, 45, 75, 93, 135, 155, 225, 279, 465, 675, 775, 837, 991, 1395, 2325, 2973, 4185, 4955, 6975, 8919, 14865, 20925, 24775, 26757, 30721, 44595, 74325, 92163, 133785, 153605, 222975, 276489, 460815, 668925, 768025, 829467, 1382445, 2304075, 4147335, 6912225, 20736675]

約数ペア:

[(1, 20736675), (3, 6912225), (5, 4147335), (9, 2304075), (15, 1382445), (25, 829467), (27, 768025), (31, 668925), (45, 460815), (75, 276489), (93, 222975), (135, 153605), (155, 133785), (225, 92163), (279, 74325), (465, 44595), (675, 30721), (775, 26757), (837, 24775), (991, 20925), (1395, 14865), (2325, 8919), (2973, 6975), (4185, 4955)]