19128304

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2243}}^1$

素因数の和:2305

約数の個数: 40

約数和(自身を含む): 40903632

約数和(自身を除く): 21775328

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 104, 164, 208, 328, 533, 656, 1066, 2132, 2243, 4264, 4486, 8528, 8972, 17944, 29159, 35888, 58318, 91963, 116636, 183926, 233272, 367852, 466544, 735704, 1195519, 1471408, 2391038, 4782076, 9564152, 19128304]

約数ペア:

[(1, 19128304), (2, 9564152), (4, 4782076), (8, 2391038), (13, 1471408), (16, 1195519), (26, 735704), (41, 466544), (52, 367852), (82, 233272), (104, 183926), (164, 116636), (208, 91963), (328, 58318), (533, 35888), (656, 29159), (1066, 17944), (2132, 8972), (2243, 8528), (4264, 4486)]