21117944

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{5009}}^1$

素因数の和:5063

約数の個数: 32

約数和(自身を含む): 43286400

約数和(自身を除く): 22168456

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 5009, 10018, 20036, 40072, 85153, 155279, 170306, 310558, 340612, 621116, 681224, 1242232, 2639743, 5279486, 10558972, 21117944]

約数ペア:

[(1, 21117944), (2, 10558972), (4, 5279486), (8, 2639743), (17, 1242232), (31, 681224), (34, 621116), (62, 340612), (68, 310558), (124, 170306), (136, 155279), (248, 85153), (527, 40072), (1054, 20036), (2108, 10018), (4216, 5009)]