21015786

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{16759}}^1$

素因数の和:16794

約数の個数: 32

約数和(自身を含む): 48268800

約数和(自身を除く): 27253014

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 38, 57, 66, 114, 209, 418, 627, 1254, 16759, 33518, 50277, 100554, 184349, 318421, 368698, 553047, 636842, 955263, 1106094, 1910526, 3502631, 7005262, 10507893, 21015786]

約数ペア:

[(1, 21015786), (2, 10507893), (3, 7005262), (6, 3502631), (11, 1910526), (19, 1106094), (22, 955263), (33, 636842), (38, 553047), (57, 368698), (66, 318421), (114, 184349), (209, 100554), (418, 50277), (627, 33518), (1254, 16759)]