20961237

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{331}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 32509440

約数和(自身を除く): 11548203

約数列:

[1, 3, 11, 19, 33, 57, 101, 209, 303, 331, 627, 993, 1111, 1919, 3333, 3641, 5757, 6289, 10923, 18867, 21109, 33431, 63327, 69179, 100293, 207537, 367741, 635189, 1103223, 1905567, 6987079, 20961237]

約数ペア:

[(1, 20961237), (3, 6987079), (11, 1905567), (19, 1103223), (33, 635189), (57, 367741), (101, 207537), (209, 100293), (303, 69179), (331, 63327), (627, 33431), (993, 21109), (1111, 18867), (1919, 10923), (3333, 6289), (3641, 5757)]