397967283

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:765

約数の個数: 64

約数和(自身を含む): 698941440

約数和(自身を除く): 300974157

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 71, 141, 189, 213, 329, 423, 497, 631, 639, 987, 1269, 1491, 1893, 1917, 2961, 3337, 4417, 4473, 5679, 8883, 10011, 13251, 13419, 17037, 23359, 29657, 30033, 39753, 44801, 70077, 88971, 90099, 119259, 134403, 207599, 210231, 266913, 313607, 403209, 622797, 630693, 800739, 940821, 1209627, 1868391, 2105647, 2822463, 5605173, 6316941, 8467389, 14739529, 18950823, 44218587, 56852469, 132655761, 397967283]

約数ペア:

[(1, 397967283), (3, 132655761), (7, 56852469), (9, 44218587), (21, 18950823), (27, 14739529), (47, 8467389), (63, 6316941), (71, 5605173), (141, 2822463), (189, 2105647), (213, 1868391), (329, 1209627), (423, 940821), (497, 800739), (631, 630693), (639, 622797), (987, 403209), (1269, 313607), (1491, 266913), (1893, 210231), (1917, 207599), (2961, 134403), (3337, 119259), (4417, 90099), (4473, 88971), (5679, 70077), (8883, 44801), (10011, 39753), (13251, 30033), (13419, 29657), (17037, 23359)]