18953690

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{823}}^1$

素因数の和:891

約数の個数: 48

約数和(自身を含む): 40580352

約数和(自身を除く): 21626662

約数列:

[1, 2, 5, 7, 10, 14, 35, 47, 49, 70, 94, 98, 235, 245, 329, 470, 490, 658, 823, 1645, 1646, 2303, 3290, 4115, 4606, 5761, 8230, 11515, 11522, 23030, 28805, 38681, 40327, 57610, 77362, 80654, 193405, 201635, 270767, 386810, 403270, 541534, 1353835, 1895369, 2707670, 3790738, 9476845, 18953690]

約数ペア:

[(1, 18953690), (2, 9476845), (5, 3790738), (7, 2707670), (10, 1895369), (14, 1353835), (35, 541534), (47, 403270), (49, 386810), (70, 270767), (94, 201635), (98, 193405), (235, 80654), (245, 77362), (329, 57610), (470, 40327), (490, 38681), (658, 28805), (823, 23030), (1645, 11522), (1646, 11515), (2303, 8230), (3290, 5761), (4115, 4606)]