21133025515

素因数分解:

$5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{677}}^1\times {\mathrm{1237}}^1$

素因数の和:2036

約数の個数: 48

約数和(自身を含む): 29854498752

約数和(自身を除く): 8721473237

約数列:

[1, 5, 7, 35, 49, 103, 245, 515, 677, 721, 1237, 3385, 3605, 4739, 5047, 6185, 8659, 23695, 25235, 33173, 43295, 60613, 69731, 127411, 165865, 303065, 348655, 488117, 637055, 837449, 891877, 2440585, 3416819, 4187245, 4459385, 5862143, 6243139, 17084095, 29310715, 31215695, 41035001, 86257247, 205175005, 431286235, 603800729, 3019003645, 4226605103, 21133025515]

約数ペア:

[(1, 21133025515), (5, 4226605103), (7, 3019003645), (35, 603800729), (49, 431286235), (103, 205175005), (245, 86257247), (515, 41035001), (677, 31215695), (721, 29310715), (1237, 17084095), (3385, 6243139), (3605, 5862143), (4739, 4459385), (5047, 4187245), (6185, 3416819), (8659, 2440585), (23695, 891877), (25235, 837449), (33173, 637055), (43295, 488117), (60613, 348655), (69731, 303065), (127411, 165865)]