18715179

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{389}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 29952000

約数和(自身を除く): 11236821

約数列:

[1, 3, 7, 21, 29, 79, 87, 203, 237, 389, 553, 609, 1167, 1659, 2291, 2723, 6873, 8169, 11281, 16037, 30731, 33843, 48111, 78967, 92193, 215117, 236901, 645351, 891199, 2673597, 6238393, 18715179]

約数ペア:

[(1, 18715179), (3, 6238393), (7, 2673597), (21, 891199), (29, 645351), (79, 236901), (87, 215117), (203, 92193), (237, 78967), (389, 48111), (553, 33843), (609, 30731), (1167, 16037), (1659, 11281), (2291, 8169), (2723, 6873)]