19028219

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{431}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 23934528

約数和(自身を除く): 4906309

約数列:

[1, 7, 17, 49, 53, 119, 371, 431, 833, 901, 2597, 3017, 6307, 7327, 21119, 22843, 44149, 51289, 159901, 359023, 388331, 1119307, 2718317, 19028219]

約数ペア:

[(1, 19028219), (7, 2718317), (17, 1119307), (49, 388331), (53, 359023), (119, 159901), (371, 51289), (431, 44149), (833, 22843), (901, 21119), (2597, 7327), (3017, 6307)]