21283236

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:223

約数の個数: 120

約数和(自身を含む): 62230784

約数和(自身を除く): 40947548

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 31, 36, 39, 52, 54, 62, 78, 81, 93, 108, 117, 124, 156, 162, 163, 186, 234, 279, 324, 326, 351, 372, 403, 468, 489, 558, 652, 702, 806, 837, 978, 1053, 1116, 1209, 1404, 1467, 1612, 1674, 1956, 2106, 2119, 2418, 2511, 2934, 3348, 3627, 4212, 4238, 4401, 4836, 5022, 5053, 5868, 6357, 7254, 8476, 8802, 10044, 10106, 10881, 12714, 13203, 14508, 15159, 17604, 19071, 20212, 21762, 25428, 26406, 30318, 32643, 38142, 43524, 45477, 52812, 57213, 60636, 65286, 65689, 76284, 90954, 114426, 130572, 131378, 136431, 171639, 181908, 197067, 228852, 262756, 272862, 343278, 394134, 409293, 545724, 591201, 686556, 788268, 818586, 1182402, 1637172, 1773603, 2364804, 3547206, 5320809, 7094412, 10641618, 21283236]

約数ペア:

[(1, 21283236), (2, 10641618), (3, 7094412), (4, 5320809), (6, 3547206), (9, 2364804), (12, 1773603), (13, 1637172), (18, 1182402), (26, 818586), (27, 788268), (31, 686556), (36, 591201), (39, 545724), (52, 409293), (54, 394134), (62, 343278), (78, 272862), (81, 262756), (93, 228852), (108, 197067), (117, 181908), (124, 171639), (156, 136431), (162, 131378), (163, 130572), (186, 114426), (234, 90954), (279, 76284), (324, 65689), (326, 65286), (351, 60636), (372, 57213), (403, 52812), (468, 45477), (489, 43524), (558, 38142), (652, 32643), (702, 30318), (806, 26406), (837, 25428), (978, 21762), (1053, 20212), (1116, 19071), (1209, 17604), (1404, 15159), (1467, 14508), (1612, 13203), (1674, 12714), (1956, 10881), (2106, 10106), (2119, 10044), (2418, 8802), (2511, 8476), (2934, 7254), (3348, 6357), (3627, 5868), (4212, 5053), (4238, 5022), (4401, 4836)]