20919078

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{499}}^1$

素因数の和:661

約数の個数: 48

約数和(自身を含む): 48438000

約数和(自身を除く): 27518922

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 137, 153, 274, 306, 411, 499, 822, 998, 1233, 1497, 2329, 2466, 2994, 4491, 4658, 6987, 8483, 8982, 13974, 16966, 20961, 25449, 41922, 50898, 68363, 76347, 136726, 152694, 205089, 410178, 615267, 1162171, 1230534, 2324342, 3486513, 6973026, 10459539, 20919078]

約数ペア:

[(1, 20919078), (2, 10459539), (3, 6973026), (6, 3486513), (9, 2324342), (17, 1230534), (18, 1162171), (34, 615267), (51, 410178), (102, 205089), (137, 152694), (153, 136726), (274, 76347), (306, 68363), (411, 50898), (499, 41922), (822, 25449), (998, 20961), (1233, 16966), (1497, 13974), (2329, 8982), (2466, 8483), (2994, 6987), (4491, 4658)]