21012100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{11059}}^1$

素因数の和:11092

約数の個数: 36

約数和(自身を含む): 48000400

約数和(自身を除く): 26988300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 11059, 22118, 44236, 55295, 110590, 210121, 221180, 276475, 420242, 552950, 840484, 1050605, 1105900, 2101210, 4202420, 5253025, 10506050, 21012100]

約数ペア:

[(1, 21012100), (2, 10506050), (4, 5253025), (5, 4202420), (10, 2101210), (19, 1105900), (20, 1050605), (25, 840484), (38, 552950), (50, 420242), (76, 276475), (95, 221180), (100, 210121), (190, 110590), (380, 55295), (475, 44236), (950, 22118), (1900, 11059)]