21793772

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5443}}^1$

素因数の和:5478

約数の個数: 48

約数和(自身を含む): 51217152

約数和(自身を除く): 29423380

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 5443, 10886, 21772, 38101, 59873, 70759, 76202, 119746, 141518, 152404, 239492, 283036, 419111, 495313, 778349, 838222, 990626, 1556698, 1676444, 1981252, 3113396, 5448443, 10896886, 21793772]

約数ペア:

[(1, 21793772), (2, 10896886), (4, 5448443), (7, 3113396), (11, 1981252), (13, 1676444), (14, 1556698), (22, 990626), (26, 838222), (28, 778349), (44, 495313), (52, 419111), (77, 283036), (91, 239492), (143, 152404), (154, 141518), (182, 119746), (286, 76202), (308, 70759), (364, 59873), (572, 38101), (1001, 21772), (2002, 10886), (4004, 5443)]