20814519

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{373}}^1$

素因数の和:495

約数の個数: 32

約数和(自身を含む): 32313600

約数和(自身を除く): 11499081

約数列:

[1, 3, 11, 19, 33, 57, 89, 209, 267, 373, 627, 979, 1119, 1691, 2937, 4103, 5073, 7087, 12309, 18601, 21261, 33197, 55803, 77957, 99591, 233871, 365167, 630743, 1095501, 1892229, 6938173, 20814519]

約数ペア:

[(1, 20814519), (3, 6938173), (11, 1892229), (19, 1095501), (33, 630743), (57, 365167), (89, 233871), (209, 99591), (267, 77957), (373, 55803), (627, 33197), (979, 21261), (1119, 18601), (1691, 12309), (2937, 7087), (4103, 5073)]