21682206

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 61746048

約数和(自身を除く): 40063842

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 31, 39, 42, 49, 61, 62, 63, 78, 91, 93, 98, 117, 122, 126, 147, 182, 183, 186, 217, 234, 273, 279, 294, 366, 403, 427, 434, 441, 546, 549, 558, 637, 651, 793, 806, 819, 854, 882, 1098, 1209, 1274, 1281, 1302, 1519, 1586, 1638, 1891, 1911, 1953, 2379, 2418, 2562, 2821, 2989, 3038, 3627, 3782, 3822, 3843, 3906, 4557, 4758, 5551, 5642, 5673, 5733, 5978, 7137, 7254, 7686, 8463, 8967, 9114, 11102, 11346, 11466, 13237, 13671, 14274, 16653, 16926, 17019, 17934, 19747, 24583, 25389, 26474, 26901, 27342, 33306, 34038, 38857, 39494, 39711, 49166, 49959, 50778, 53802, 59241, 73749, 77714, 79422, 92659, 99918, 116571, 118482, 119133, 147498, 172081, 177723, 185318, 221247, 233142, 238266, 277977, 344162, 349713, 355446, 442494, 516243, 555954, 699426, 833931, 1032486, 1204567, 1548729, 1667862, 2409134, 3097458, 3613701, 7227402, 10841103, 21682206]

約数ペア:

[(1, 21682206), (2, 10841103), (3, 7227402), (6, 3613701), (7, 3097458), (9, 2409134), (13, 1667862), (14, 1548729), (18, 1204567), (21, 1032486), (26, 833931), (31, 699426), (39, 555954), (42, 516243), (49, 442494), (61, 355446), (62, 349713), (63, 344162), (78, 277977), (91, 238266), (93, 233142), (98, 221247), (117, 185318), (122, 177723), (126, 172081), (147, 147498), (182, 119133), (183, 118482), (186, 116571), (217, 99918), (234, 92659), (273, 79422), (279, 77714), (294, 73749), (366, 59241), (403, 53802), (427, 50778), (434, 49959), (441, 49166), (546, 39711), (549, 39494), (558, 38857), (637, 34038), (651, 33306), (793, 27342), (806, 26901), (819, 26474), (854, 25389), (882, 24583), (1098, 19747), (1209, 17934), (1274, 17019), (1281, 16926), (1302, 16653), (1519, 14274), (1586, 13671), (1638, 13237), (1891, 11466), (1911, 11346), (1953, 11102), (2379, 9114), (2418, 8967), (2562, 8463), (2821, 7686), (2989, 7254), (3038, 7137), (3627, 5978), (3782, 5733), (3822, 5673), (3843, 5642), (3906, 5551), (4557, 4758)]