19953758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:332

約数の個数: 32

約数和(自身を含む): 33786720

約数和(自身を除く): 13832962

約数列:

[1, 2, 11, 22, 53, 106, 109, 157, 218, 314, 583, 1166, 1199, 1727, 2398, 3454, 5777, 8321, 11554, 16642, 17113, 34226, 63547, 91531, 127094, 183062, 188243, 376486, 906989, 1813978, 9976879, 19953758]

約数ペア:

[(1, 19953758), (2, 9976879), (11, 1813978), (22, 906989), (53, 376486), (106, 188243), (109, 183062), (157, 127094), (218, 91531), (314, 63547), (583, 34226), (1166, 17113), (1199, 16642), (1727, 11554), (2398, 8321), (3454, 5777)]