19893815

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1831}}^1$

素因数の和:1930

約数の個数: 16

約数和(自身を含む): 24929856

約数和(自身を除く): 5036041

約数列:

[1, 5, 41, 53, 205, 265, 1831, 2173, 9155, 10865, 75071, 97043, 375355, 485215, 3978763, 19893815]

約数ペア:

[(1, 19893815), (5, 3978763), (41, 485215), (53, 375355), (205, 97043), (265, 75071), (1831, 10865), (2173, 9155)]