16981930

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{4951}}^1$

素因数の和:4979

約数の個数: 32

約数和(自身を含む): 35654400

約数和(自身を除く): 18672470

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 4951, 9902, 24755, 34657, 49510, 69314, 173285, 242599, 346570, 485198, 1212995, 1698193, 2425990, 3396386, 8490965, 16981930]

約数ペア:

[(1, 16981930), (2, 8490965), (5, 3396386), (7, 2425990), (10, 1698193), (14, 1212995), (35, 485198), (49, 346570), (70, 242599), (98, 173285), (245, 69314), (343, 49510), (490, 34657), (686, 24755), (1715, 9902), (3430, 4951)]