9900121

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 13317120

約数和(自身を除く): 3416999

約数列:

[1, 7, 11, 19, 67, 77, 101, 133, 209, 469, 707, 737, 1111, 1273, 1463, 1919, 5159, 6767, 7777, 8911, 13433, 14003, 21109, 47369, 74437, 98021, 128573, 147763, 521059, 900011, 1414303, 9900121]

約数ペア:

[(1, 9900121), (7, 1414303), (11, 900011), (19, 521059), (67, 147763), (77, 128573), (101, 98021), (133, 74437), (209, 47369), (469, 21109), (707, 14003), (737, 13433), (1111, 8911), (1273, 7777), (1463, 6767), (1919, 5159)]