281034747

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 496908672

約数和(自身を除く): 215873925

約数列:

[1, 3, 7, 9, 21, 31, 49, 61, 63, 93, 147, 183, 217, 279, 337, 427, 441, 549, 651, 1011, 1281, 1519, 1891, 1953, 2359, 2989, 3033, 3843, 4557, 5673, 7077, 8967, 10447, 13237, 13671, 16513, 17019, 20557, 21231, 26901, 31341, 39711, 49539, 61671, 73129, 92659, 94023, 119133, 143899, 148617, 185013, 219387, 277977, 431697, 511903, 637267, 658161, 833931, 1007293, 1295091, 1535709, 1911801, 3021879, 4460869, 4607127, 5735403, 9065637, 13382607, 31226083, 40147821, 93678249, 281034747]

約数ペア:

[(1, 281034747), (3, 93678249), (7, 40147821), (9, 31226083), (21, 13382607), (31, 9065637), (49, 5735403), (61, 4607127), (63, 4460869), (93, 3021879), (147, 1911801), (183, 1535709), (217, 1295091), (279, 1007293), (337, 833931), (427, 658161), (441, 637267), (549, 511903), (651, 431697), (1011, 277977), (1281, 219387), (1519, 185013), (1891, 148617), (1953, 143899), (2359, 119133), (2989, 94023), (3033, 92659), (3843, 73129), (4557, 61671), (5673, 49539), (7077, 39711), (8967, 31341), (10447, 26901), (13237, 21231), (13671, 20557), (16513, 17019)]