19995068

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:330

約数の個数: 36

約数和(自身を含む): 37700712

約数和(自身を除く): 17705644

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 227, 244, 361, 454, 722, 908, 1159, 1444, 2318, 4313, 4636, 8626, 13847, 17252, 22021, 27694, 44042, 55388, 81947, 88084, 163894, 263093, 327788, 526186, 1052372, 4998767, 9997534, 19995068]

約数ペア:

[(1, 19995068), (2, 9997534), (4, 4998767), (19, 1052372), (38, 526186), (61, 327788), (76, 263093), (122, 163894), (227, 88084), (244, 81947), (361, 55388), (454, 44042), (722, 27694), (908, 22021), (1159, 17252), (1444, 13847), (2318, 8626), (4313, 4636)]