21855574

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 37721376

約数和(自身を除く): 15865802

約数列:

[1, 2, 13, 17, 26, 34, 197, 221, 251, 394, 442, 502, 2561, 3263, 3349, 4267, 5122, 6526, 6698, 8534, 43537, 49447, 55471, 87074, 98894, 110942, 642811, 840599, 1285622, 1681198, 10927787, 21855574]

約数ペア:

[(1, 21855574), (2, 10927787), (13, 1681198), (17, 1285622), (26, 840599), (34, 642811), (197, 110942), (221, 98894), (251, 87074), (394, 55471), (442, 49447), (502, 43537), (2561, 8534), (3263, 6698), (3349, 6526), (4267, 5122)]