19193998

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 11910002

約数列:

[1, 2, 29, 58, 59, 71, 79, 118, 142, 158, 1711, 2059, 2291, 3422, 4118, 4189, 4582, 4661, 5609, 8378, 9322, 11218, 121481, 135169, 162661, 242962, 270338, 325322, 330931, 661862, 9596999, 19193998]

約数ペア:

[(1, 19193998), (2, 9596999), (29, 661862), (58, 330931), (59, 325322), (71, 270338), (79, 242962), (118, 162661), (142, 135169), (158, 121481), (1711, 11218), (2059, 9322), (2291, 8378), (3422, 5609), (4118, 4661), (4189, 4582)]