21345597

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 38613120

約数和(自身を除く): 17267523

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 67, 91, 117, 201, 273, 389, 469, 603, 819, 871, 1167, 1407, 2613, 2723, 3501, 4221, 5057, 6097, 7839, 8169, 15171, 18291, 24507, 26063, 35399, 45513, 54873, 78189, 106197, 182441, 234567, 318591, 338819, 547323, 1016457, 1641969, 2371733, 3049371, 7115199, 21345597]

約数ペア:

[(1, 21345597), (3, 7115199), (7, 3049371), (9, 2371733), (13, 1641969), (21, 1016457), (39, 547323), (63, 338819), (67, 318591), (91, 234567), (117, 182441), (201, 106197), (273, 78189), (389, 54873), (469, 45513), (603, 35399), (819, 26063), (871, 24507), (1167, 18291), (1407, 15171), (2613, 8169), (2723, 7839), (3501, 6097), (4221, 5057)]