16979690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1$

素因数の和:471

約数の個数: 64

約数和(自身を含む): 38513664

約数和(自身を除く): 21533974

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 47, 65, 70, 91, 94, 130, 182, 235, 329, 397, 455, 470, 611, 658, 794, 910, 1222, 1645, 1985, 2779, 3055, 3290, 3970, 4277, 5161, 5558, 6110, 8554, 10322, 13895, 18659, 21385, 25805, 27790, 36127, 37318, 42770, 51610, 72254, 93295, 130613, 180635, 186590, 242567, 261226, 361270, 485134, 653065, 1212835, 1306130, 1697969, 2425670, 3395938, 8489845, 16979690]

約数ペア:

[(1, 16979690), (2, 8489845), (5, 3395938), (7, 2425670), (10, 1697969), (13, 1306130), (14, 1212835), (26, 653065), (35, 485134), (47, 361270), (65, 261226), (70, 242567), (91, 186590), (94, 180635), (130, 130613), (182, 93295), (235, 72254), (329, 51610), (397, 42770), (455, 37318), (470, 36127), (611, 27790), (658, 25805), (794, 21385), (910, 18659), (1222, 13895), (1645, 10322), (1985, 8554), (2779, 6110), (3055, 5558), (3290, 5161), (3970, 4277)]