21418254

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 55901664

約数和(自身を除く): 34483410

約数列:

[1, 2, 3, 6, 9, 11, 13, 18, 22, 26, 33, 39, 53, 66, 78, 99, 106, 117, 143, 157, 159, 198, 234, 286, 314, 318, 429, 471, 477, 583, 689, 858, 942, 954, 1166, 1287, 1378, 1413, 1727, 1749, 2041, 2067, 2574, 2826, 3454, 3498, 4082, 4134, 5181, 5247, 6123, 6201, 7579, 8321, 10362, 10494, 12246, 12402, 15158, 15543, 16642, 18369, 22451, 22737, 24963, 31086, 36738, 44902, 45474, 49926, 67353, 68211, 74889, 91531, 108173, 134706, 136422, 149778, 183062, 202059, 216346, 274593, 324519, 404118, 549186, 649038, 823779, 973557, 1189903, 1647558, 1947114, 2379806, 3569709, 7139418, 10709127, 21418254]

約数ペア:

[(1, 21418254), (2, 10709127), (3, 7139418), (6, 3569709), (9, 2379806), (11, 1947114), (13, 1647558), (18, 1189903), (22, 973557), (26, 823779), (33, 649038), (39, 549186), (53, 404118), (66, 324519), (78, 274593), (99, 216346), (106, 202059), (117, 183062), (143, 149778), (157, 136422), (159, 134706), (198, 108173), (234, 91531), (286, 74889), (314, 68211), (318, 67353), (429, 49926), (471, 45474), (477, 44902), (583, 36738), (689, 31086), (858, 24963), (942, 22737), (954, 22451), (1166, 18369), (1287, 16642), (1378, 15543), (1413, 15158), (1727, 12402), (1749, 12246), (2041, 10494), (2067, 10362), (2574, 8321), (2826, 7579), (3454, 6201), (3498, 6123), (4082, 5247), (4134, 5181)]