20770386

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{349}}^1$

素因数の和:483

約数の個数: 64

約数和(自身を含む): 51744000

約数和(自身を除く): 30973614

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 109, 182, 218, 273, 327, 349, 546, 654, 698, 763, 1047, 1417, 1526, 2094, 2289, 2443, 2834, 4251, 4537, 4578, 4886, 7329, 8502, 9074, 9919, 13611, 14658, 19838, 27222, 29757, 31759, 38041, 59514, 63518, 76082, 95277, 114123, 190554, 228246, 266287, 494533, 532574, 798861, 989066, 1483599, 1597722, 2967198, 3461731, 6923462, 10385193, 20770386]

約数ペア:

[(1, 20770386), (2, 10385193), (3, 6923462), (6, 3461731), (7, 2967198), (13, 1597722), (14, 1483599), (21, 989066), (26, 798861), (39, 532574), (42, 494533), (78, 266287), (91, 228246), (109, 190554), (182, 114123), (218, 95277), (273, 76082), (327, 63518), (349, 59514), (546, 38041), (654, 31759), (698, 29757), (763, 27222), (1047, 19838), (1417, 14658), (1526, 13611), (2094, 9919), (2289, 9074), (2443, 8502), (2834, 7329), (4251, 4886), (4537, 4578)]