21969453

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{947}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 34583040

約数和(自身を除く): 12613587

約数列:

[1, 3, 11, 19, 33, 37, 57, 111, 209, 407, 627, 703, 947, 1221, 2109, 2841, 7733, 10417, 17993, 23199, 31251, 35039, 53979, 105117, 197923, 385429, 593769, 665741, 1156287, 1997223, 7323151, 21969453]

約数ペア:

[(1, 21969453), (3, 7323151), (11, 1997223), (19, 1156287), (33, 665741), (37, 593769), (57, 385429), (111, 197923), (209, 105117), (407, 53979), (627, 35039), (703, 31251), (947, 23199), (1221, 17993), (2109, 10417), (2841, 7733)]