19384981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 6742379

約数列:

[1, 7, 11, 17, 59, 77, 119, 187, 251, 413, 649, 1003, 1309, 1757, 2761, 4267, 4543, 7021, 11033, 14809, 19327, 29869, 46937, 77231, 103663, 162899, 251753, 328559, 1140293, 1762271, 2769283, 19384981]

約数ペア:

[(1, 19384981), (7, 2769283), (11, 1762271), (17, 1140293), (59, 328559), (77, 251753), (119, 162899), (187, 103663), (251, 77231), (413, 46937), (649, 29869), (1003, 19327), (1309, 14809), (1757, 11033), (2761, 7021), (4267, 4543)]