20853393

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{421}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 32409600

約数和(自身を除く): 11556207

約数列:

[1, 3, 11, 19, 33, 57, 79, 209, 237, 421, 627, 869, 1263, 1501, 2607, 4503, 4631, 7999, 13893, 16511, 23997, 33259, 49533, 87989, 99777, 263967, 365849, 631921, 1097547, 1895763, 6951131, 20853393]

約数ペア:

[(1, 20853393), (3, 6951131), (11, 1895763), (19, 1097547), (33, 631921), (57, 365849), (79, 263967), (209, 99777), (237, 87989), (421, 49533), (627, 33259), (869, 23997), (1263, 16511), (1501, 13893), (2607, 7999), (4503, 4631)]