215508741

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1\times {\mathrm{461}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 333704448

約数和(自身を除く): 118195707

約数列:

[1, 3, 7, 21, 113, 197, 339, 461, 591, 791, 1379, 1383, 2373, 3227, 4137, 9681, 22261, 52093, 66783, 90817, 155827, 156279, 272451, 364651, 467481, 635719, 1093953, 1907157, 10262321, 30786963, 71836247, 215508741]

約数ペア:

[(1, 215508741), (3, 71836247), (7, 30786963), (21, 10262321), (113, 1907157), (197, 1093953), (339, 635719), (461, 467481), (591, 364651), (791, 272451), (1379, 156279), (1383, 155827), (2373, 90817), (3227, 66783), (4137, 52093), (9681, 22261)]