638963241

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1021}}^1\times {\mathrm{1753}}^1$

素因数の和:2801

約数の個数: 32

約数和(自身を含む): 1032530688

約数和(自身を除く): 393567447

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 1021, 1753, 3063, 5259, 7147, 12271, 17357, 21441, 29801, 36813, 52071, 89403, 121499, 208607, 364497, 625821, 1789813, 5369439, 12528691, 30426821, 37586073, 91280463, 212987747, 638963241]

約数ペア:

[(1, 638963241), (3, 212987747), (7, 91280463), (17, 37586073), (21, 30426821), (51, 12528691), (119, 5369439), (357, 1789813), (1021, 625821), (1753, 364497), (3063, 208607), (5259, 121499), (7147, 89403), (12271, 52071), (17357, 36813), (21441, 29801)]