28747173

素因数分解:

$3^1\times 7^4\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 48311648

約数和(自身を除く): 19564475

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 307, 343, 637, 921, 1029, 1911, 2149, 2401, 3991, 4459, 6447, 7203, 11973, 13377, 15043, 27937, 31213, 45129, 83811, 93639, 105301, 195559, 315903, 586677, 737107, 1368913, 2211321, 4106739, 9582391, 28747173]

約数ペア:

[(1, 28747173), (3, 9582391), (7, 4106739), (13, 2211321), (21, 1368913), (39, 737107), (49, 586677), (91, 315903), (147, 195559), (273, 105301), (307, 93639), (343, 83811), (637, 45129), (921, 31213), (1029, 27937), (1911, 15043), (2149, 13377), (2401, 11973), (3991, 7203), (4459, 6447)]