21851710

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2447}}^1$

素因数の和:2520

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 20449730

約数列:

[1, 2, 5, 10, 19, 38, 47, 94, 95, 190, 235, 470, 893, 1786, 2447, 4465, 4894, 8930, 12235, 24470, 46493, 92986, 115009, 230018, 232465, 464930, 575045, 1150090, 2185171, 4370342, 10925855, 21851710]

約数ペア:

[(1, 21851710), (2, 10925855), (5, 4370342), (10, 2185171), (19, 1150090), (38, 575045), (47, 464930), (94, 232465), (95, 230018), (190, 115009), (235, 92986), (470, 46493), (893, 24470), (1786, 12235), (2447, 8930), (4465, 4894)]