201621969

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 310774464

約数和(自身を除く): 109152495

約数列:

[1, 3, 9, 41, 43, 97, 123, 129, 131, 291, 369, 387, 393, 873, 1179, 1763, 3977, 4171, 5289, 5371, 5633, 11931, 12513, 12707, 15867, 16113, 16899, 35793, 37539, 38121, 48339, 50697, 114363, 171011, 230953, 513033, 520987, 546401, 692859, 1539099, 1562961, 1639203, 2078577, 4688883, 4917609, 22402441, 67207323, 201621969]

約数ペア:

[(1, 201621969), (3, 67207323), (9, 22402441), (41, 4917609), (43, 4688883), (97, 2078577), (123, 1639203), (129, 1562961), (131, 1539099), (291, 692859), (369, 546401), (387, 520987), (393, 513033), (873, 230953), (1179, 171011), (1763, 114363), (3977, 50697), (4171, 48339), (5289, 38121), (5371, 37539), (5633, 35793), (11931, 16899), (12513, 16113), (12707, 15867)]