21722883

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1693}}^1$

素因数の和:1763

約数の個数: 32

約数和(自身を含む): 36427776

約数和(自身を除く): 14704893

約数列:

[1, 3, 7, 13, 21, 39, 47, 91, 141, 273, 329, 611, 987, 1693, 1833, 4277, 5079, 11851, 12831, 22009, 35553, 66027, 79571, 154063, 238713, 462189, 556997, 1034423, 1670991, 3103269, 7240961, 21722883]

約数ペア:

[(1, 21722883), (3, 7240961), (7, 3103269), (13, 1670991), (21, 1034423), (39, 556997), (47, 462189), (91, 238713), (141, 154063), (273, 79571), (329, 66027), (611, 35553), (987, 22009), (1693, 12831), (1833, 11851), (4277, 5079)]