201621329

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{1031}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 253649088

約数和(自身を除く): 52027759

約数列:

[1, 7, 13, 49, 91, 307, 637, 1031, 2149, 3991, 7217, 13403, 15043, 27937, 50519, 93821, 195559, 316517, 656747, 2215619, 4114721, 15509333, 28803047, 201621329]

約数ペア:

[(1, 201621329), (7, 28803047), (13, 15509333), (49, 4114721), (91, 2215619), (307, 656747), (637, 316517), (1031, 195559), (2149, 93821), (3991, 50519), (7217, 27937), (13403, 15043)]