19187272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^2$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 40154940

約数和(自身を除く): 20967668

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 59, 104, 106, 118, 212, 236, 424, 472, 689, 767, 1378, 1534, 2756, 3068, 3127, 3481, 5512, 6136, 6254, 6962, 12508, 13924, 25016, 27848, 40651, 45253, 81302, 90506, 162604, 181012, 184493, 325208, 362024, 368986, 737972, 1475944, 2398409, 4796818, 9593636, 19187272]

約数ペア:

[(1, 19187272), (2, 9593636), (4, 4796818), (8, 2398409), (13, 1475944), (26, 737972), (52, 368986), (53, 362024), (59, 325208), (104, 184493), (106, 181012), (118, 162604), (212, 90506), (236, 81302), (424, 45253), (472, 40651), (689, 27848), (767, 25016), (1378, 13924), (1534, 12508), (2756, 6962), (3068, 6254), (3127, 6136), (3481, 5512)]