20394638

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{503}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 15167602

約数列:

[1, 2, 11, 19, 22, 38, 97, 194, 209, 418, 503, 1006, 1067, 1843, 2134, 3686, 5533, 9557, 11066, 19114, 20273, 40546, 48791, 97582, 105127, 210254, 536701, 927029, 1073402, 1854058, 10197319, 20394638]

約数ペア:

[(1, 20394638), (2, 10197319), (11, 1854058), (19, 1073402), (22, 927029), (38, 536701), (97, 210254), (194, 105127), (209, 97582), (418, 48791), (503, 40546), (1006, 20273), (1067, 19114), (1843, 11066), (2134, 9557), (3686, 5533)]