21518811501

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1\times {\mathrm{1847}}^1$

素因数の和:2090

約数の個数: 64

約数和(自身を含む): 32784998400

約数和(自身を除く): 11266186899

約数列:

[1, 3, 11, 33, 41, 79, 109, 123, 237, 327, 451, 869, 1199, 1353, 1847, 2607, 3239, 3597, 4469, 5541, 8611, 9717, 13407, 20317, 25833, 35629, 49159, 60951, 75727, 94721, 106887, 145913, 147477, 201323, 227181, 284163, 353051, 437739, 603969, 832997, 1059153, 1605043, 2214553, 2498991, 3883561, 4815129, 5982433, 6643659, 8254243, 11650683, 15904517, 17947299, 24762729, 47713551, 65806763, 90796673, 174949687, 197420289, 272390019, 524849061, 652085197, 1956255591, 7172937167, 21518811501]

約数ペア:

[(1, 21518811501), (3, 7172937167), (11, 1956255591), (33, 652085197), (41, 524849061), (79, 272390019), (109, 197420289), (123, 174949687), (237, 90796673), (327, 65806763), (451, 47713551), (869, 24762729), (1199, 17947299), (1353, 15904517), (1847, 11650683), (2607, 8254243), (3239, 6643659), (3597, 5982433), (4469, 4815129), (5541, 3883561), (8611, 2498991), (9717, 2214553), (13407, 1605043), (20317, 1059153), (25833, 832997), (35629, 603969), (49159, 437739), (60951, 353051), (75727, 284163), (94721, 227181), (106887, 201323), (145913, 147477)]