20515747574

素因数分解:

$2^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{311}}^1\times {\mathrm{9221}}^1$

素因数の和:9621

約数の個数: 48

約数和(自身を含む): 36408898656

約数和(自身を除く): 15893151082

約数列:

[1, 2, 7, 14, 49, 73, 98, 146, 311, 511, 622, 1022, 2177, 3577, 4354, 7154, 9221, 15239, 18442, 22703, 30478, 45406, 64547, 129094, 158921, 317842, 451829, 673133, 903658, 1112447, 1346266, 2224894, 2867731, 4711931, 5735462, 9423862, 20074117, 32983517, 40148234, 65967034, 140518819, 209344363, 281037638, 418688726, 1465410541, 2930821082, 10257873787, 20515747574]

約数ペア:

[(1, 20515747574), (2, 10257873787), (7, 2930821082), (14, 1465410541), (49, 418688726), (73, 281037638), (98, 209344363), (146, 140518819), (311, 65967034), (511, 40148234), (622, 32983517), (1022, 20074117), (2177, 9423862), (3577, 5735462), (4354, 4711931), (7154, 2867731), (9221, 2224894), (15239, 1346266), (18442, 1112447), (22703, 903658), (30478, 673133), (45406, 451829), (64547, 317842), (129094, 158921)]